Audi e-tron Concept, 2009

 

•  Audi e-tron Concept, 2009

Audi presents the highlight of the IAA 2009: the Audi e-tron Concept, a high-performance sports car with a purely electric drive system. Four motors - two each at the front and rear axles - drive the wheels, making the concept car a true quattro. Producing 230 kW (313 hp) and 4,500 Nm (3,319.03 lb-ft) of torque, the two-seater accelerates from 0 to 100 km/h (0 - 62.14 mph) in 4.8 seconds, and from 60 to 120 km/h (37.28 - 74.56 mph) in 4.1 seconds. The lithium-ion battery provides a truly useable energy content of 42.4 kilowatt hours to enable a range of approximately 248 kilometers.

The performance figures are by no means the only evidence of the consistent and holistic strategy. The design makes it clear that the Audi e-tron Concept belongs in the major leagues of sports cars, and the package takes into account the specific realities of an electric vehicle. The battery is directly behind the passenger cabin for an optimal center of gravity and axle load distribution.

The Audi e-tron Concept is able to freely distribute the powerful torque of its four electric motors to the wheels as required. This so-called torque vectoring allows for dazzling dynamics and an undreamed-of level of agility and precision when cornering.

Audi has taken a new and in some cases revolutionary approach to many of the technical modules. A heat pump is used to efficiently warm up and heat the interior. The drive system, the power electronics and the battery are controlled by an innovative thermal management system that is a crucial component for achieving the car's range without compromising its high level of interior comfort. Networking the vehicle electronics with the surroundings, which is referred to as car-to-x communication, opens new dimensions for the optimization of efficiency, safety and convenience.

The Concept
Electric drive systems are still very much outsiders. The first vehicles of this type took to the roads around 1900, yet in 2009 no volume car manufacturer has a car powered exclusively by batteries in its lineup. Fewer than 1,500 electric vehicles are currently registered in Germany, corresponding to only 0.035 percent of all registered vehicles.

Yet electric driving potentially offers numerous advantages. Electric cars reduce the dependence of transportation and the economy on the raw material petroleum. They produce no direct exhaust emissions and thus ease the local burden on the environment. Electric drive systems are also significantly more efficient than combustion engines, consequently making them easier on the customers' wallets. Other strengths include sportiness and the fun they bring to driving. All of the torque is essentially available the moment the driver steps on the accelerator, allowing for breathtaking acceleration.

There is still a lot of work to do before electric cars are ready for volume production, however. The greatest challenge is the integration of the energy storage system. Acceptable range and performance requires a traction battery that is heavy and takes up a lot of space. Audi is taking a new approach to offset these disadvantages - a holistic approach with a specific vehicle package, a systematic lightweight construction concept and an optimal configuration of all components for the electric drive.

Audi e-tron Concept - The Holistic Approach
The most important development related to batteries for electric drives are lithium-ion cells. Numerous experts throughout the world are working on their further development for use in cars, with the primary objectives being to reduce weight and increase capacity and performance. Audi has also opted for this technology, both for use in a hybrid production vehicle, such as the upcoming Q5 hybrid, and in the e-tron test platform.

The requirement specification for the concept vehicle goes far beyond battery technology and the replacement of the combustion engine with an electric drive system, however. The Audi development engineers decided back in the concept phase to design practically every component and technology based on the new requirements of electric mobility. The interaction of all elements has a decisive influence on the factors efficiency, range and practicality.

The Audi team therefore focused its attention on the total vehicle, which is reflected in the comprehensive requirement specification.

• The reduction of road resistances and the resulting increase in range plays a major role with electric vehicles. Lightweight construction was therefore a top priority for the Audi e-tron Concept car. The body, in particular, combines low weight with supreme strength and rigidity. An intelligent aerodynamics concept with active elements helps to reduce consumption.
• The package ensures the safe integration of the electric drive system and the battery. Placing the battery in front of the rear axle ensures an optimal axle load distribution without compromising the compact overall design and the generous amount of interior space.
• Advanced battery technology enables a practical range. The battery system is water-cooled for optimal performance and service life.
• A needs-based energy management system controls all functions for the chassis, convenience equipment and other auxiliary consumers.
• The innovative thermal management system with optimally matched cooling and heating components considers the cooling requirements of the battery and the drive system in addition to the interior temperature.
•  Driving dynamics and road comfort are what Audi customers have come to expect in the sports car segment.
• Vehicle safety is on par with the best of today's production vehicles.
• The driver is provided with clear and comprehensive information.
• The Audi e-tron Concept car uses car-to-x communication technology developed by Audi to improve the efficiency of conventionally powered vehicles. For example, information about traffic light cycle times and the flow of traffic - provided by the infrastructure and other vehicles - is used to compute an optimal driving strategy. Audi has already modeled such a solution in Ingolstadt as part of its "travolution" project.

Design and Package
The caliber of the car is apparent to the observer at first glance. The Audi e-tron Concept has a wide, powerful stance on the road. The car body seems almost monolithic; the closed rear end appears powerful and muscular. The trapeze of the single-frame grille dominates the front end and is flanked by two large air intakes. The top of the grille merges into the flat strips of the adaptive matrix beam headlamp modules with their clear glass covers. High-efficiency LED technology is used for all lighting units - a matter of honor for Audi as the worldwide pioneer in this field.

The headlamps are the core of a fully automatic light assistance system that reacts flexibly to any situation. The new technology recognizes weather conditions and adapts the illumination to rain or fog. The technology at the heart of the light assistance system is a camera that works together with a fast computer to detect oncoming traffic, recognize lanes and measure visibilities, such as in the event of fog.

If there is oncoming traffic, for example, the high beams are turned off in the corresponding section of the illumination field. The cornering light system analyzes data from the navigation system and illuminates corners before the driver steers into them. The Audi e-tron Concept does not have conventional fog lamps that consume additional power. It instead intelligently varies the low beams to widen the illumination field, thus significantly reducing the glare from the car's own lights.

The variability of the headlamps is also reflected in their design. The LED elements change appearance and thus the character of the front end of the vehicle depending on the speed driven and the ambient conditions. The innovative lighting technology offers the Audi designers almost as much design freedom as the shape of the body does.

A new design element unique to the Audi e-tron Concept are the air intakes in the single-frame grille and in front of the rear wheel wells. They are closed flush under normal circumstances and opened by means of flaps when additional cooling air is required. Maximum efficiency is also the reason behind this measure. The concept car has a remarkably low drag coefficient, which gets even better when the flaps are closed.

The vehicle body is compact. The sweeping line of the front end and the flat curved roof immediately identify the two-seater as an Audi. The contours of the flanks are familiar. The tapering of the dynamic line above the sill and the shoulder line tie together the front end, the side and the rear, lend a plastic quality to the doors and the transition to the side air intake and sharply emphasize the Audi-typical round wheel wells with the large, 19-inch tires.

1.90 meters (74.80 in) wide, just 4.26 meters (167.72 in) long and 1.23 meters (48.43 in) tall - those are the proportions of a supercar. The wheelbase of 2.60 meters (102.36 in) leaves plenty of room between the axles for people and technology. Like with a mid-engined sports car, the cabin of the Audi e-tron Concept is shifted far forward toward the front axle, leaving room in front of the rear axle for the roughly 470 kilogram (1036.17 lb) battery unit, the inverter and the power electronics.

The two electric motors, which have their own cooling system, are mounted behind the rear axle. The front electric motors are mounted on the front axle, with their cooling system arranged in front of them. This special package, which features a 42:58 weight distribution, ensures perfect balance, which contributes to the driving dynamics of the Audi e-tron Concept.

Systematic lightweight construction is an even more important prerequisite for efficiency and range with electric vehicles than for conventionally powered automobiles. The Audi development engineers drew on the core competence of the company for the Audi e-tron Concept. The body structure is based on Audi Space Frame (ASF) technology and was realized as a hybrid construction. All add-on parts - doors, covers, sidewalls and roof - are made of a fiber-reinforced plastic.

The combination of aluminum and carbon fiber-reinforced composite material guarantees supreme rigidity coupled with low weight. Audi will soon use this technology in a similar form for production vehicles. Despite the complex drive system layout with four electric motors and a high-capacity battery system, the total weight of the Audi e-tron Concept is only around 1,600 kilograms (3527.40 lb).

Interior and Control Concept
Optical and functional references to the new drive concept characterize the interior design. They establish an advanced connection between proven Audi genes and new formal hallmarks. Typical for the Audi design language is the reduction of the architecture, controls and flow of information to the essential in favor of visible lightweight construction and a tidy overall impression.

The dash appears to float and has a curve that extends laterally into the door panels. With no need to allow for a transmission, shifter and cardan tunnel, the designers took advantage of the opportunity to create a particularly slim and lightweight center tunnel and center console. The flush gear selector, with which the driver chooses between the modes forward, reverse and neutral, emerges from the tunnel when the vehicle is started.

The cockpit of the Audi e-tron Concept is also oriented toward the driver - a further characteristic Audi trait. Instead of the classic instrument cluster, the concept car is the first Audi to be equipped with a large, fold-out central display with integrated MMI functions. It is flanked by two round dials.

The MMI is controlled via a scroll pad with a touch-sensitive surface on the steering wheel ("MMI touch") - an element inspired by modern smartphones.

While an analog speedometer on the right provides speed information, the instrument on the left tells the driver how much power is being drawn. The central display shows the range in the status bar and presents all key information from the infotainment and navigation systems. It also provides the driver with relevant data from the vehicle's communication with its surroundings. The instruments combine the analog and the digital worlds into a single unit.

Characteristic for the concept of the Audi e-tron Concept is the near total elimination of switches and small components such as the ignition. The climate control unit is located to the right above the steering wheel. The display provides temperature and ventilation information. Again drawing inspiration from a smartphone, the system is controlled by means of a touch-sensitive sliding control.

The racing-inspired lightweight bucket seats combine excellent lateral support with comfort. To contrasting colors - snow white and cognac - delineate the various zones of the interior. The colors and the high-quality materials combine elegance and sportiness.

Drive System and Energy Supply
Four asynchronous motors with a total output of 230 kilowatts (313 hp) give the Audi e-tron Concept the performance of a high-output sports car. The concept car can accelerate from 0 to 100 km/h (0 - 62.14 mph) in 4.8 seconds if necessary, and goes from 60 to 120 km/h (37.28 - 74.56 mph) in 4.1 seconds. The torque flows selectively to the wheels based on the driving situation and the condition of the road surface, resulting in outstanding traction and handling.

The top speed is limited to 200 km/h (124.27 mph), as the amount of energy required by the electric motors increases disproportionately to speed. The range in the NECD combined cycle is approximately 248 kilometers (154 miles). This good value is made possible by the integrated concept: technology specially configured for the electric drive system combined with state-of-the-art battery technology. The battery block has a total energy content of roughly 53 kilowatt hours, with the usable portion thereof restricted to 42.4 kWh in the interest of service life. Audi uses liquid cooling for the batteries.

The energy storage unit is charged with household current (230 volts, 16 amperes) via a cable and a plug. The socket is behind a cover at the back of the car. With the battery fully discharged, the charging time is between 6 and 8 hours. A high voltage (400 volts, 63 amperes) reduces this to just around 2.5 hours. The Audi engineers are working on a wireless solution to make charging more convenient. The inductive charging station, which can be placed in the garage at home or also in special parking garages, is activated automatically when the vehicle is docked. Such technology is already used today in a similar form to charge electric toothbrushes.

The battery is charged not only when the car is stationary, but also when it is in motion. The keyword here is recuperation. This form of energy recovery and return to the battery is already available today in a number of Audi production models. During braking, the alternator converts the kinetic energy into electrical energy, which it then feeds into the onboard electrical system.

The Audi e-tron Concept, which is slowed by four lightweight ceramic brake discs, takes the next large step into the future. An electronic brake system makes it possible to tap into the recuperation potential of the electric motors. A hydraulic fixed-caliper brake is mounted on the front axle, with two novel electrically-actuated floating-caliper brakes mounted on the rear axle. These floating calipers are actuated not by any mechanical or hydraulic transfer elements, but rather by wire ("brake by wire"). In addition, this eliminates frictional losses due to residual slip when the brakes are not being applied.

This decoupling of the brake pedal enables the Audi e-tron Concept's electric motors to convert all of the braking energy into electricity and recover it. The electromechanical brake system is only activated if greater deceleration is required. These control actions are unnoticeable to the driver, who feels only a predictable and constant pedal feel as with a hydraulic brake system.

Making its Automotive Debut: The Heat Pump
The heat pump - used here for the first time ever in an automobile - also serves to increase efficiency and range. Unlike a combustion engine, the electric drive system may not produce enough waste heat under all operating conditions to effectively heat the interior. Other electric vehicles are equipped with electric supplemental heaters, which consume a relatively large amount of energy. The heat pump used by Audi - and commonly used in buildings - is a highly efficient machine that uses mechanical work to provide heat with a minimum input of energy.

A high-efficiency climate control system is used to cool the interior. It works together with the thermal management system to also control the temperature of the high-voltage battery. The battery, the power electronics and the electric motors must be kept at their respective ideal operating temperatures to achieve optimal performance and range.

As soon as the vehicle is connected to a charging station the vehicle is preconditioned as appropriate by the thermal management and other associated systems.

The drive system is heated if temperatures are cool, and cooled if hot. This preconditioning can also be extended to the interior, if necessary, so that the passengers can step into a cabin that has been heated or cooled as appropriate for their comfort.

Driving Dynamics
The normal distribution of the tractive power is clearly biased toward the rear axle in accordance with the weight distribution of the Audi e-tron Concept. Similarly to a mid-engined sports car, roughly 70 percent of the power goes the rear and 30 percent to the front. If an axle slips, this balance can be varied by means of the four centrally controlled electric motors. The electric vehicle from Audi thus enjoys all of the advantages of quattro technology.

The four individual motors, which in the interest of greater traction are installed behind the wheels as wheel drives, also enable the Audi e-tron Concept's lateral dynamics to be intelligently controlled. Similar to what the sport differential does in conventional quattro vehicles, torque vectoring - the targeted acceleration of individual wheels - makes the Audi e-tron Concept even more dynamic while simultaneously enhancing driving safety. Understeer and oversteer can be corrected by not only targeted activation of the brakes, but also by precise increases in power lasting just a few milliseconds. The concept car remains extremely neutral even under great lateral acceleration and hustles through corners as if on the proverbial rails.

The chassis has triangular double wishbones at the front axle and trapezoidal wishbones made of forged aluminum components at the rear axle - a geometry that has proven in motorsports to be the optimal prerequisite for high agility, uncompromising precision and precisely defined self-steering behavior. A taut setup was chosen for the springs and shock absorbers, but it is still very comfortable.

The direct rack-and-pinion steering gives finely differentiated feedback. Its electromechanical steering boost varies with speed, so that the Audi e-tron Concept only has to provide energy while steering, and not while driving straight ahead.

As befitting its status, the Audi concept car rolls on 19-inch tires with a new blade design. 235/35 tires up front and 295/30 tires in the rear provide the necessary grip.

Car-to-x Communication
The electronics development engineers at Audi not only aimed to make the Audi e-tron Concept as efficient and fun to drive as possible, they were also very concerned with safety and traffic management. The technical concept car includes a prototype of an information processing system. Future generations of these systems will usher in a new era in the networking of road traffic, particularly in regions and countries with a high volume of traffic. This progress is made possible by the rapid advancements in computing power, software and communication technology.

The buzzword "car-to-x communication" refers to the direct exchange of information in flowing traffic and to the traffic environment. The letter "x" is a free variable that can refer just as easily to other vehicles as to fixed infrastructure such as traffic lights. In contrast to today's telematic systems, car-to-x communication no longer requires a central service provider to quickly and effectively pool and process information. The participants themselves perform these tasks by spontaneously networking with one another.

The future car-to-x network still needs some time before it becomes reality on the roads. This obstacle is one that can be overcome, however, as nearly every carmaker in Europe, the U.S.A. and Japan has decided to develop a common standard for hardware and software. Once all new cars are equipped with this technology, a functional network of automotive transmitters will soon be available, at least in large population centers.

These transmitters can be used to open up many new practical applications. Below are just four examples showing the possibilities offered by car-to-x communication.

Example 1 - Efficiency and range: Numerous external factors influence energy consumption and thus the range of any vehicle. An intelligent vehicle equipped with car-to-x technology is aware of necessary braking or acceleration maneuvers in advance because it combines navigational data with information about the flow of traffic, for example. The central computer can prevent driver actions that would use energy unnecessarily or use targeted braking for recuperation of the battery.

Example 2 - Safety: A vehicle has spun out on a slippery road in a blind curve and is unable to free itself under its own power. At the same time, other vehicles are approaching quickly. The stuck vehicle uses car-to-x to send out a warning signal reporting the precise location of the hazardous location. A corresponding warning then appears on the navigation system display of the approaching cars.

Example 3 - Traffic flow: Many cars are traveling between traffic lights on an arterial road. Over and over again, they accelerate only to have to brake again when the traffic light changes to red. Car-to-x technology enables them to establish a network between themselves and receive information from the traffic light controller. The drivers can then make more judicious use of the gas pedal because they know what to expect. The same applies for imminent traffic jams: cars ahead provide information that results in adjustments to the posted speed limits, noticeably spreading out the traffic.

Example 4 - Convenience: The driver has entered a shopping center with a chronic shortage of parking spaces into his navigation system as the destination. With car-to-x, the mobile system networks with the parking space registration system at the destination. When the system in the parking garage reports that a convenient parking spot is available, the navigation system can register its location and also reserve the spot.

Audi R8 Spyder 5.2 FSI quattro, 2008

 

 

 

• Audi R8 Spyder 5.2 FSI quattro, 2008

Audi R8 Spyder 5.2 FSI quattro - exceptional performance and breathtaking dynamism coupled with the intense sensations of open-top driving. Its lightweight cloth top opens and closes fully automatically; several body parts are made of a carbon fiber composite material.

The V10 engine produces 386 kW (525 hp) and launches the open-top two-seater to 100 km/h (62.14 mph) in 4.1 seconds on its way to a top speed of 313 km/h (194.49 mph). Featuring technologies such as the Audi Space Frame (ASF), quattro permanent all-wheel drive, full-LED headlights and with an innovative seatbelt microphone available as an option, the Audi R8 Spyder 5.2 FSI quattro is the new top-of-the-range Audi.

The Audi R8 Spyder 5.2 FSI quattro makes a powerful statement. The sculptured lines of the emotion-packed, high-performance sports car are a fascinating and unique interpretation of its dynamism. Unlike the Audi R8 Coupé, the Spyder does not have sideblades behind the doors. The side panels and the large cover over the storage compartment for the cloth top are made of a carbon fiber composite. Two arched cowls, which extend to the spoiler lip and include large, integrated air vents, give the rear of the open-top two-seater a powerful profile.

Like every open-top Audi, the Audi R8 Spyder 5.2 FSI quattro has a cloth top - an uncompromising solution for a high-performance sports car. The soft top's approximate weight is a mere 30 kilograms (66.14 lb); it thus keeps the vehicle's total weight and center of gravity low. The top takes up little space when open and is a harmonious design element when closed. It tapers off to two slim fins extending to the trailing edge of the car, emphasizing the elongated silhouette.
Audi R8 Spyder 5.2 FSI quattro

The electrohydraulic soft top opens and closes in 19 seconds, even while driving at speeds up to 50 km/h (31.07 mph). When opened, it folds like a Z into its storage compartment over the V10 engine. The compartment cover opens and closes automatically. The heated glass window, which is separate from the cloth top, is lowered into the bulkhead. It can be independently raised and lowered at the press of a switch, with the top up or down. An additional net-like wind deflector comes standard and can be latched into the bulkhead behind the seats in two easy steps.

The top, which comprises an outer skin of a leakproof textile fabric and the headliner, is fully compatible with high-speed driving. When driving at moderate speeds with the top up, interior noise levels in the Audi R8 Spyder are barely higher than in the Coupé. The bulkhead includes integrated rollover protection in the form of two strong, spring-tensioned plates. Head/thorax side bags in the backrests protect the passengers in the event of a side impact. Full-size airbags stand at the ready in the event of a head-on collision. In a rear-end collision, the integral head restraint system reduces the risk of whiplash injuries.

In the version with manual transmission, the Audi R8 Spyder 5.2 FSI quattro weighs only 1,720 kilograms thanks primarily to its aluminum Audi Space Frame (ASF) body. Despite reinforcements in the area of the sills, the center tunnel, the rear wall, the floor pan and the A- and B-pillars, the body weighs only 216 kilograms (476.2 lb) - just 6 kilograms (13.23 lb) more than that of the Audi R8 Coupé. The high stiffness of the ASF body, which includes an integrated engine frame of ultra-lightweight magnesium, provides the foundation for the car's dynamic handling and superior safety.

Close attention to detail: the design
Numerous details demonstrate that the Audi designers put their hearts into the design of the Audi R8 Spyder 5.2 FSI quattro. The air inlets in the nose, which direct air across the three radiators, and the lip of the front skirt are painted high-gloss black. The struts in the broad, low, single-frame grille are finely coated with chrome. The standard full-LED headlights are technical works of art. Their reflectors resemble open mussel shells; the daytime running lights appear to be a homogeneous strip, but actually comprise 24 individual LEDs that form a curve at the lower edge of the headlight.

The full-LED headlights from Audi are unmatched by its international competitors. Light-emitting diodes are used for the low beams, the high beams, the daytime running lights and the turn signals. With a color temperature of 6,000 Kelvin, the LED light is very similar to daylight, making it easier on the eyes when driving at night. Additional strengths include excellent light distribution, long service life and extremely low energy consumption.

The side sills of the Audi R8 Spyder 5.2 FSI quattro are broad and angular. V10 badges on the flanks allude to the power of the engine. A dark surface between the rear lights emphasizes the car's width. The chambers of the lights are colored dark red, with LEDs generating a three-dimensional light pattern. The exhaust system ends in two large, oval tailpipes, and the fully lined underbody ends in an upturned diffuser. The rear spoiler extends automatically at higher speeds.

Audi offers the Audi R8 Spyder 5.2 FSI quattro with a choice of three colors for the top. The body is available in eleven paint finishes, with metallic and pearl effect finishes standard. The windshield frame is coated with anodized aluminum.

Sporty luxury: the interior
The open-top two-seater from Audi features a generously spacious interior. The three-spoke leather multifunction sport steering wheel is flattened at the bottom as in a race car, and the low-mounted, electrically adjustable seats guide and support the body perfectly.

Quality of fit and finish is extraordinary and the controls are clear and logical. The standard driver information system includes a lap timer for recording lap times. The instruments and the gear lever knob feature red rings. The pedals, the footrests and the shift paddles of the optional R tronic are in aluminum look. Highlighting the list of standard equipment are a generous full-leather package featuring Fine Nappa leather, an excellent sound system from Bang & Olufsen, a deluxe automatic air conditioning system and heated seats. Six different interior colors are available.

Many additional fine features documents the top status of the Audi R8 Spyder 5.2 FSI quattro. The leather for the seats are colored with pigments that reflect the infrared component of sunlight, which keeps the seats up to 20 degrees Celsius cooler.

Door sill strips coated with aluminum and adorned with black satin finish applications impart an air of luxurious sportiness. Three storage compartments are integrated into the rear bulkhead, one of which contains the optional CD changer or Audi music interface, if desired. There is a front compartment for 100 liters (3.53 cu ft) of luggage.

The latest version of the navigation system plus with MMI operating logic is also standard in the Audi R8 Spyder 5.2 FSI quattro. It features higher resolution and particularly fast route calculation. The system's most visible new feature is the high-resolution, 6.5-inch display. The topographic view can be scrolled in any direction. The system can be combined optionally with a rearview camera that serves as a parking aid.

Audi offers custom extras, such as exclusive leather packages and special inlays. A worldwide first is the optional seatbelt microphone for the hands-free unit, which makes it possible to talk on the phone even with the top down on the highway. Three small, flat microphones are integrated into both seatbelts. At least one of them is ideally positioned relative to the speaker when the belt is on. There is a fourth microphone in the windshield frame.

Uncompromising power: the engine
The Audi R8 Spyder 5.2 FSI quattro, which was developed in cooperation with quattro GmbH, dazzles with uncompromising performance. The V10 engine with the aluminum crankcase, much of which is hand-built, follows in the grand motorsports tradition at Audi. The normally aspirated engine produces 530 Nm (390.91 lb-ft) of torque at 6,500 rpm. Peak output of 386 kW (525 hp) is reached at 8,000 rpm, and the rev limit is not reached until 8,700 rpm. Specific power output is 100.9 hp per liter of displacement; each hp only needs to move 3.3 kilograms (7.28 lb) of weight.

Performance reflects this awesome potential: 0 - 100 km/h (62.14 mph) in 4.1 seconds; 0 - 200 km/h (124.27 mph) in 12.7 seconds; top speed is 313 km/h (194.49 mph) with the six-speed manual transmission. As load and revs increase, the engine unfolds the rich, unmistakable Audi ten-cylinder sound - a powerful, throaty roar with musical undertones.

The 5.2-liter engine features FSI direct fuel injection. The high 12.5:1 compression ratio that this enables contributes to the high performance and good fuel efficiency. Equipped with a manual transmission, the Audi R8 Spyder 5.2 FSI quattro consumes an average of 14.9 liters of fuel per 100 km (15.79 US mpg) - a good figure given its power. With R tronic, this figure improves to 13.9 liters (16.92 US mpg). Dry sump lubrication, another motorsports technology, ensures that the supply of oil is maintained even at the maximum lateral acceleration of 1.2 g.

The Audi R8 Spyder 5.2 FSI is also available with an optional automatic six-speed transmission. The R tronic offers a normal and a sport program as well as a fully automatic and a manual mode. The manual mode allows the driver to make lightning-fast gear changes using the joystick on the center tunnel or with the paddles on the steering wheel. The open-air sports car also comes with "Launch Control" - a program that manages engagement of the clutch perfectly to maximize acceleration at start.

The quattro permanent all-wheel drive features a central viscous coupling and distributes power to all four wheels with a heavy rear bias. It works together with the locking differential on the rear axle to provide significantly greater traction, stability, cornering speed and precision. It is the superior technology - in particular for a high-performance sports car.

Dazzling performance: the chassis
The Audi R8 Spyder 5.2 FSI quattro has a 2.65-meter (8.69-ft) wheelbase and a 43:57 axle load distribution. Like in a race car, there are double triangular wishbones made of aluminum at all four wheels. The hydraulic rack-and-pinion power steering conveys highly precise road contact.

The chassis is tuned for good comfort, thanks in part to standard Audi magnetic ride technology. This uses magnetic fields in the shock absorbers to adjust their response to road conditions within milliseconds and adapt to the driver's style. The driver can choose between two base characteristics. A sports suspension with conventional shock absorbers is available as an option.

The Audi R8 Spyder 5.2 FSI quattro rolls on 19-inch wheels of 10-spoke Y design. The front rims are shod with 235/35 tires, with 295/30 tires at the back. 305/30 tires are optionally available. The brakes offer impressive performance: The four discs are internally ventilated and perforated, with eight-piston calipers up front and four-piston calipers at the back. Optionally available from Audi are oversized carbon fiber-ceramic discs that are extremely lightweight, robust and long-lived. The ESP stabilization system has a Sport mode and can also be completely deactivated. The brake system includes an assist function that facilitates starting on gradients.

The Audi R8 Spyder 5.2 FSI quattro is built by quattro GmbH at the Neckarsulm plant. The vehicle, including the ASF, is largely hand-built. The open-top two-seater will be launched in Germany in the first quarter of 2010. Its base price will be 156,400 euros.

Audi e-tron Concept, 2008

•  Audi e-tron Concept, 2008

The Audi presents the highlight of the IAA 2009: the Audi e-tron Concept, a high-performance sports car with a purely electric drive system. Four motors - two each at the front and rear axles - drive the wheels, making the concept car a true quattro. Producing 230 kW (313 hp) and 4,500 Nm (3,319.03 lb-ft) of torque, the two-seater accelerates from 0 to 100 km/h (0 - 62.14 mph) in 4.8 seconds, and from 60 to 120 km/h (37.28 - 74.56 mph) in 4.1 seconds. The lithium-ion battery provides a truly useable energy content of 42.4 kilowatt hours to enable a range of approximately 248 kilometers.

The performance figures are by no means the only evidence of the consistent and holistic strategy. The design makes it clear that the Audi e-tron Concept belongs in the major leagues of sports cars, and the package takes into account the specific realities of an electric vehicle. The battery is directly behind the passenger cabin for an optimal center of gravity and axle load distribution.

The Audi e-tron Concept is able to freely distribute the powerful torque of its four electric motors to the wheels as required. This so-called torque vectoring allows for dazzling dynamics and an undreamed-of level of agility and precision when cornering.

Audi has taken a new and in some cases revolutionary approach to many of the technical modules. A heat pump is used to efficiently warm up and heat the interior. The drive system, the power electronics and the battery are controlled by an innovative thermal management system that is a crucial component for achieving the car's range without compromising its high level of interior comfort. Networking the vehicle electronics with the surroundings, which is referred to as car-to-x communication, opens new dimensions for the optimization of efficiency, safety and convenience.
Audi e-tron Concept

The Concept
Electric drive systems are still very much outsiders. The first vehicles of this type took to the roads around 1900, yet in 2009 no volume car manufacturer has a car powered exclusively by batteries in its lineup. Fewer than 1,500 electric vehicles are currently registered in Germany, corresponding to only 0.035 percent of all registered vehicles.

Yet electric driving potentially offers numerous advantages. Electric cars reduce the dependence of transportation and the economy on the raw material petroleum. They produce no direct exhaust emissions and thus ease the local burden on the environment. Electric drive systems are also significantly more efficient than combustion engines, consequently making them easier on the customers' wallets. Other strengths include sportiness and the fun they bring to driving. All of the torque is essentially available the moment the driver steps on the accelerator, allowing for breathtaking acceleration.

There is still a lot of work to do before electric cars are ready for volume production, however. The greatest challenge is the integration of the energy storage system. Acceptable range and performance requires a traction battery that is heavy and takes up a lot of space. Audi is taking a new approach to offset these disadvantages - a holistic approach with a specific vehicle package, a systematic lightweight construction concept and an optimal configuration of all components for the electric drive.

Audi e-tron Concept - The Holistic Approach
The most important development related to batteries for electric drives are lithium-ion cells. Numerous experts throughout the world are working on their further development for use in cars, with the primary objectives being to reduce weight and increase capacity and performance. Audi has also opted for this technology, both for use in a hybrid production vehicle, such as the upcoming Q5 hybrid, and in the e-tron test platform.

The requirement specification for the concept vehicle goes far beyond battery technology and the replacement of the combustion engine with an electric drive system, however. The Audi development engineers decided back in the concept phase to design practically every component and technology based on the new requirements of electric mobility. The interaction of all elements has a decisive influence on the factors efficiency, range and practicality.

The Audi team therefore focused its attention on the total vehicle, which is reflected in the comprehensive requirement specification.

• The reduction of road resistances and the resulting increase in range plays a major role with electric vehicles. Lightweight construction was therefore a top priority for the Audi e-tron Concept car. The body, in particular, combines low weight with supreme strength and rigidity. An intelligent aerodynamics concept with active elements helps to reduce consumption.
• The package ensures the safe integration of the electric drive system and the battery. Placing the battery in front of the rear axle ensures an optimal axle load distribution without compromising the compact overall design and the generous amount of interior space.
• Advanced battery technology enables a practical range. The battery system is water-cooled for optimal performance and service life.
• A needs-based energy management system controls all functions for the chassis, convenience equipment and other auxiliary consumers.
• The innovative thermal management system with optimally matched cooling and heating components considers the cooling requirements of the battery and the drive system in addition to the interior temperature.
• Driving dynamics and road comfort are what Audi customers have come to expect in the sports car segment.
• Vehicle safety is on par with the best of today's production vehicles.
• The driver is provided with clear and comprehensive information.
• The Audi e-tron Concept car uses car-to-x communication technology developed by Audi to improve the efficiency of conventionally powered vehicles. For example, information about traffic light cycle times and the flow of traffic - provided by the infrastructure and other vehicles - is used to compute an optimal driving strategy. Audi has already modeled such a solution in Ingolstadt as part of its "travolution" project.

Design and Package
The caliber of the car is apparent to the observer at first glance. The Audi e-tron Concept has a wide, powerful stance on the road. The car body seems almost monolithic; the closed rear end appears powerful and muscular. The trapeze of the single-frame grille dominates the front end and is flanked by two large air intakes. The top of the grille merges into the flat strips of the adaptive matrix beam headlamp modules with their clear glass covers. High-efficiency LED technology is used for all lighting units - a matter of honor for Audi as the worldwide pioneer in this field.

The headlamps are the core of a fully automatic light assistance system that reacts flexibly to any situation. The new technology recognizes weather conditions and adapts the illumination to rain or fog. The technology at the heart of the light assistance system is a camera that works together with a fast computer to detect oncoming traffic, recognize lanes and measure visibilities, such as in the event of fog.

If there is oncoming traffic, for example, the high beams are turned off in the corresponding section of the illumination field. The cornering light system analyzes data from the navigation system and illuminates corners before the driver steers into them. The Audi e-tron Concept does not have conventional fog lamps that consume additional power. It instead intelligently varies the low beams to widen the illumination field, thus significantly reducing the glare from the car's own lights.

The variability of the headlamps is also reflected in their design. The LED elements change appearance and thus the character of the front end of the vehicle depending on the speed driven and the ambient conditions. The innovative lighting technology offers the Audi designers almost as much design freedom as the shape of the body does.

A new design element unique to the Audi e-tron Concept are the air intakes in the single-frame grille and in front of the rear wheel wells. They are closed flush under normal circumstances and opened by means of flaps when additional cooling air is required. Maximum efficiency is also the reason behind this measure. The concept car has a remarkably low drag coefficient, which gets even better when the flaps are closed.

The vehicle body is compact. The sweeping line of the front end and the flat curved roof immediately identify the two-seater as an Audi. The contours of the flanks are familiar. The tapering of the dynamic line above the sill and the shoulder line tie together the front end, the side and the rear, lend a plastic quality to the doors and the transition to the side air intake and sharply emphasize the Audi-typical round wheel wells with the large, 19-inch tires.

1.90 meters (74.80 in) wide, just 4.26 meters (167.72 in) long and 1.23 meters (48.43 in) tall - those are the proportions of a supercar. The wheelbase of 2.60 meters (102.36 in) leaves plenty of room between the axles for people and technology. Like with a mid-engined sports car, the cabin of the Audi e-tron Concept is shifted far forward toward the front axle, leaving room in front of the rear axle for the roughly 470 kilogram (1036.17 lb) battery unit, the inverter and the power electronics.

The two electric motors, which have their own cooling system, are mounted behind the rear axle. The front electric motors are mounted on the front axle, with their cooling system arranged in front of them. This special package, which features a 42:58 weight distribution, ensures perfect balance, which contributes to the driving dynamics of the Audi e-tron Concept.

Systematic lightweight construction is an even more important prerequisite for efficiency and range with electric vehicles than for conventionally powered automobiles. The Audi development engineers drew on the core competence of the company for the Audi e-tron Concept. The body structure is based on Audi Space Frame (ASF) technology and was realized as a hybrid construction. All add-on parts - doors, covers, sidewalls and roof - are made of a fiber-reinforced plastic.

The combination of aluminum and carbon fiber-reinforced composite material guarantees supreme rigidity coupled with low weight. Audi will soon use this technology in a similar form for production vehicles. Despite the complex drive system layout with four electric motors and a high-capacity battery system, the total weight of the Audi e-tron Concept is only around 1,600 kilograms (3527.40 lb).

Interior and Control Concept
Optical and functional references to the new drive concept characterize the interior design. They establish an advanced connection between proven Audi genes and new formal hallmarks. Typical for the Audi design language is the reduction of the architecture, controls and flow of information to the essential in favor of visible lightweight construction and a tidy overall impression.

The dash appears to float and has a curve that extends laterally into the door panels. With no need to allow for a transmission, shifter and cardan tunnel, the designers took advantage of the opportunity to create a particularly slim and lightweight center tunnel and center console. The flush gear selector, with which the driver chooses between the modes forward, reverse and neutral, emerges from the tunnel when the vehicle is started.

The cockpit of the Audi e-tron Concept is also oriented toward the driver - a further characteristic Audi trait. Instead of the classic instrument cluster, the concept car is the first Audi to be equipped with a large, fold-out central display with integrated MMI functions. It is flanked by two round dials.

The MMI is controlled via a scroll pad with a touch-sensitive surface on the steering wheel ("MMI touch") - an element inspired by modern smartphones.

While an analog speedometer on the right provides speed information, the instrument on the left tells the driver how much power is being drawn. The central display shows the range in the status bar and presents all key information from the infotainment and navigation systems. It also provides the driver with relevant data from the vehicle's communication with its surroundings. The instruments combine the analog and the digital worlds into a single unit.

Characteristic for the concept of the Audi e-tron Concept is the near total elimination of switches and small components such as the ignition. The climate control unit is located to the right above the steering wheel. The display provides temperature and ventilation information. Again drawing inspiration from a smartphone, the system is controlled by means of a touch-sensitive sliding control.

The racing-inspired lightweight bucket seats combine excellent lateral support with comfort. To contrasting colors - snow white and cognac - delineate the various zones of the interior. The colors and the high-quality materials combine elegance and sportiness.

Drive System and Energy Supply
Four asynchronous motors with a total output of 230 kilowatts (313 hp) give the Audi e-tron Concept the performance of a high-output sports car. The concept car can accelerate from 0 to 100 km/h (0 - 62.14 mph) in 4.8 seconds if necessary, and goes from 60 to 120 km/h (37.28 - 74.56 mph) in 4.1 seconds. The torque flows selectively to the wheels based on the driving situation and the condition of the road surface, resulting in outstanding traction and handling.

The top speed is limited to 200 km/h (124.27 mph), as the amount of energy required by the electric motors increases disproportionately to speed. The range in the NECD combined cycle is approximately 248 kilometers (154 miles). This good value is made possible by the integrated concept: technology specially configured for the electric drive system combined with state-of-the-art battery technology. The battery block has a total energy content of roughly 53 kilowatt hours, with the usable portion thereof restricted to 42.4 kWh in the interest of service life. Audi uses liquid cooling for the batteries.

The energy storage unit is charged with household current (230 volts, 16 amperes) via a cable and a plug. The socket is behind a cover at the back of the car. With the battery fully discharged, the charging time is between 6 and 8 hours. A high voltage (400 volts, 63 amperes) reduces this to just around 2.5 hours. The Audi engineers are working on a wireless solution to make charging more convenient. The inductive charging station, which can be placed in the garage at home or also in special parking garages, is activated automatically when the vehicle is docked. Such technology is already used today in a similar form to charge electric toothbrushes.

The battery is charged not only when the car is stationary, but also when it is in motion. The keyword here is recuperation. This form of energy recovery and return to the battery is already available today in a number of Audi production models. During braking, the alternator converts the kinetic energy into electrical energy, which it then feeds into the onboard electrical system.

The Audi e-tron Concept, which is slowed by four lightweight ceramic brake discs, takes the next large step into the future. An electronic brake system makes it possible to tap into the recuperation potential of the electric motors. A hydraulic fixed-caliper brake is mounted on the front axle, with two novel electrically-actuated floating-caliper brakes mounted on the rear axle. These floating calipers are actuated not by any mechanical or hydraulic transfer elements, but rather by wire ("brake by wire"). In addition, this eliminates frictional losses due to residual slip when the brakes are not being applied.

This decoupling of the brake pedal enables the Audi e-tron Concept's electric motors to convert all of the braking energy into electricity and recover it. The electromechanical brake system is only activated if greater deceleration is required. These control actions are unnoticeable to the driver, who feels only a predictable and constant pedal feel as with a hydraulic brake system.

Making its Automotive Debut: The Heat Pump
The heat pump - used here for the first time ever in an automobile - also serves to increase efficiency and range. Unlike a combustion engine, the electric drive system may not produce enough waste heat under all operating conditions to effectively heat the interior. Other electric vehicles are equipped with electric supplemental heaters, which consume a relatively large amount of energy. The heat pump used by Audi - and commonly used in buildings - is a highly efficient machine that uses mechanical work to provide heat with a minimum input of energy.

A high-efficiency climate control system is used to cool the interior. It works together with the thermal management system to also control the temperature of the high-voltage battery. The battery, the power electronics and the electric motors must be kept at their respective ideal operating temperatures to achieve optimal performance and range.

As soon as the vehicle is connected to a charging station the vehicle is preconditioned as appropriate by the thermal management and other associated systems.

The drive system is heated if temperatures are cool, and cooled if hot. This preconditioning can also be extended to the interior, if necessary, so that the passengers can step into a cabin that has been heated or cooled as appropriate for their comfort.

Driving Dynamics
The normal distribution of the tractive power is clearly biased toward the rear axle in accordance with the weight distribution of the Audi e-tron Concept. Similarly to a mid-engined sports car, roughly 70 percent of the power goes the rear and 30 percent to the front. If an axle slips, this balance can be varied by means of the four centrally controlled electric motors. The electric vehicle from Audi thus enjoys all of the advantages of quattro technology.

The four individual motors, which in the interest of greater traction are installed behind the wheels as wheel drives, also enable the Audi e-tron Concept's lateral dynamics to be intelligently controlled. Similar to what the sport differential does in conventional quattro vehicles, torque vectoring - the targeted acceleration of individual wheels - makes the Audi e-tron Concept even more dynamic while simultaneously enhancing driving safety. Understeer and oversteer can be corrected by not only targeted activation of the brakes, but also by precise increases in power lasting just a few milliseconds. The concept car remains extremely neutral even under great lateral acceleration and hustles through corners as if on the proverbial rails.

The chassis has triangular double wishbones at the front axle and trapezoidal wishbones made of forged aluminum components at the rear axle - a geometry that has proven in motorsports to be the optimal prerequisite for high agility, uncompromising precision and precisely defined self-steering behavior. A taut setup was chosen for the springs and shock absorbers, but it is still very comfortable.

The direct rack-and-pinion steering gives finely differentiated feedback. Its electromechanical steering boost varies with speed, so that the Audi e-tron Concept only has to provide energy while steering, and not while driving straight ahead.

As befitting its status, the Audi concept car rolls on 19-inch tires with a new blade design. 235/35 tires up front and 295/30 tires in the rear provide the necessary grip.

Car-to-x Communication
The electronics development engineers at Audi not only aimed to make the Audi e-tron Concept as efficient and fun to drive as possible, they were also very concerned with safety and traffic management. The technical concept car includes a prototype of an information processing system. Future generations of these systems will usher in a new era in the networking of road traffic, particularly in regions and countries with a high volume of traffic. This progress is made possible by the rapid advancements in computing power, software and communication technology.

The buzzword "car-to-x communication" refers to the direct exchange of information in flowing traffic and to the traffic environment. The letter "x" is a free variable that can refer just as easily to other vehicles as to fixed infrastructure such as traffic lights. In contrast to today's telematic systems, car-to-x communication no longer requires a central service provider to quickly and effectively pool and process information. The participants themselves perform these tasks by spontaneously networking with one another.

The future car-to-x network still needs some time before it becomes reality on the roads. This obstacle is one that can be overcome, however, as nearly every carmaker in Europe, the U.S.A. and Japan has decided to develop a common standard for hardware and software. Once all new cars are equipped with this technology, a functional network of automotive transmitters will soon be available, at least in large population centers.

These transmitters can be used to open up many new practical applications. Below are just four examples showing the possibilities offered by car-to-x communication.

Example 1 - Efficiency and range: Numerous external factors influence energy consumption and thus the range of any vehicle. An intelligent vehicle equipped with car-to-x technology is aware of necessary braking or acceleration maneuvers in advance because it combines navigational data with information about the flow of traffic, for example. The central computer can prevent driver actions that would use energy unnecessarily or use targeted braking for recuperation of the battery.

Example 2 - Safety: A vehicle has spun out on a slippery road in a blind curve and is unable to free itself under its own power. At the same time, other vehicles are approaching quickly. The stuck vehicle uses car-to-x to send out a warning signal reporting the precise location of the hazardous location. A corresponding warning then appears on the navigation system display of the approaching cars.

Example 3 - Traffic flow: Many cars are traveling between traffic lights on an arterial road. Over and over again, they accelerate only to have to brake again when the traffic light changes to red. Car-to-x technology enables them to establish a network between themselves and receive information from the traffic light controller. The drivers can then make more judicious use of the gas pedal because they know what to expect. The same applies for imminent traffic jams: cars ahead provide information that results in adjustments to the posted speed limits, noticeably spreading out the traffic.

Example 4 - Convenience: The driver has entered a shopping center with a chronic shortage of parking spaces into his navigation system as the destination. With car-to-x, the mobile system networks with the parking space registration system at the destination. When the system in the parking garage reports that a convenient parking spot is available, the navigation system can register its location and also reserve the spot.

Audi AS5, 2008

 

•  ABT Audi AS5, 2008

The new Audi A5 combines a sporty and an unobtrusive design to a powerful, elegant and individual appearance. "A uniquely beautiful car and thus a real challenge for us," says Hans-Jürgen Abt. The managing director of Abt Sportsline raved about the new Coupe from Ingolstadt, but he emphasizes that "our designers and engineers were able to improve the outstanding base model even more". The character of the noble sportscar still maintains but after getting a special treatment in the Allgaeu it appears more dynamical. The body kit, especially tailor-made for the Abt AS5, is a spectacular package: a front skirt with a grid element which emphasizes the singel-frame grill and the fog lights, the slightly curved, laterally mounted body parts and the sleek gill-shaped air-inlets, as well as the well-proportioned rear. With the unobtrusive but striking rear spoiler and the rear skirt inset in diffuser optics, the design of the Abt AS5 is gracefully rounded off. The 4-pipe rear muffler is perfectly fitting and additionally recontoures the rear view. Needless to say that the car sounds as a real Abt car should.

Even when standing still, the Abt AS5 is a sensual car, which eagerly wants to be driven. And when it is allowed to go on the road, it shows how much sports spirit it has. First of all, the 3.0 TDI engine gets a significant "power treatment". The extremely powerful, self-igniting engine perfectly fits to the A5 and, in addition, offers moderate consumption values. By means of improved motor management, Abt turns the serial 240 hp (176 kW) into powerful 272 hp (200 kW). With an extra Abt turbo charger, the power even increases to 300 well feeded horses. Diesel and sportiness belong together since long. Certainly, Abt Sportsline will successively modify later developed A5 engines.

To ensure a perfect handling of the noble power package, Abt also makes use of its adjustable sports suspension, besides the serial Quattro engine. All the more, the Abt AS5 will be brought to a standstill by means of the Abt brake system with a disc diameter of 380 millimeters.

To perfectly round off the successful optics package, Abt Sportsline recommends the AR wheel, which is available for the A5 in the sizes from 18 to 20 inch, of course together with appropriate sport tyres. Wheels, body components and technical modifications build a whole unit: a wonderful Coupe at its best. Not more and not less.

ABT Audi R8, 2008

• ABT Audi R8, 2008

The Abt R8: Sports car in perfection
There are cars and dream cars. The latter includes Lamborghini's Gallardo, Ferrari's F430 or Porsche's 911 Turbo. These cars make your heart beat faster and show the perfected magic of speed on the roads. Abt Sportsline's R8 among the outstanding super sports cars and is getting ready to overtake them in the prestige duel.

The design studies already show the first impressions of Abt's sportiest creation - and prove that the Kempten-based tuner manages to perfect an excellent serial model like the R8 to detail and accentuate its racing genes already in the drawing. The front of the Bavarian R8 shows the marked Abt face. Together with the unique and beautiful rear with its four inclined arranged exhaust end pipes, the rear diffuser and the extravagant rear wing, the front of the Abt R8 is part of an overall concept that brings about phenomenal roadholding. 

The add-on parts of the super sports cars from the Allgäu-region improve downforce and ensure perfect balance of the front and rear axis. This is especially notable in speed ranges reserved for only a few cars. The sideblades which were developed especially for the Abt R8 and the Abt side skirts give the Abt R8 a new and individual design besides aerodynamical advantages. The aerodynamically efficient Abt body kit, which also includes carbon-fibre parts, is a real eye catcher but also shows the state-of-the-art Bavarian precision work. With the ingenious construction, which also includes a carbon-fibre bonnet, not only a maximum reduction in weight is achieved but it also ensures optimized weight distribution of the Abt R8 - the pure presence of the model athlete already shows this.

The technology and the design milestones do not only come from Maranello or Sant'Agata-Bolognese but also from Kempten. The Abt R8  a gorgeous dream car with the genes of a top-class race car. This special automobile  belong to one of the fastest among the fastest; the Abt R8 will also challenge the Lamborghinis and Porsches. 

With regards to the anticipated performance data the Bavarians are traditionally discreet. 

But the data already amazes sports car fans and makes them want to spur the hot-blooded Bavarian horses. 530 HP (390 kW) are to be drawn from the 4.2 litre-V8 thanks to the Abt supercharger. Compared with the serial model which already shows impressive performance data this means an increase of 110 HP (81 kW). The brand new Abt 20-inch BR wheels stylishly transfer this power onto the asphalt. The all-wheel-drive dream car accelerates from 0 to 100 km/h in just 3.9 seconds and reaches a top speed of 317 km/h. These values are synonymous with magic and this extraordinary super sports car desperately wants to be driven. By means of the Abt suspension which is adjustable in height, pressure and rebound, the performance and driving comfort of the super sports car can be adapted perfectly to the requirements of its driver.

ABT Audi TT-R, 2007

• ABT Audi TT-R, 2007

The Abt TT-R
The real racer from the exclusive Kempten-based tuning company bears the letter "R" in its name - of course the powerful version of the TT performing incredible 355 HP (262 kW) does, too. In a flash, namely 5.1 seconds, the sportscar reaches the 100 km/h threshold.

The cockpit of the TT-R has a lot to offer its ambitious driver.
With its dynamical design it harmonizes perfectly with the sporty vehicle character - steering wheel, gear shift knob and centre console are kept in exclusive carbon-leather optics.

The magical three letters that convert a beautiful Coupé into a race car can also be found in the car interior again, as everybody driving a TT-R cannot get enough of this exclusive model.

Audi Q7, 2006

 

 Audi Q7, 2006

The Audi Q7 performance SUV immediately achieved a leadership position - as a sporty, comfortable as well as high-performance recreational and business vehicle on a grand scale. Now Audi is making it even better - more elegant and more efficient, with lower emissions: the Audi Q7 3.0 TDI consumes only 9.1 liters per 100 kilometers (25.85 US mpg). And now it's also available in a new version as a TDI clean diesel, with the world's cleanest diesel technology and even lower fuel consumption of only 8.9 liters/100 km (26.43 US mpg).

The Q7 is the large Audi for sporty individualists, for people who are seeking a vehicle that will take them anywhere they want to go for sports, recreation, and business. Its dynamic proportions and distinctive lines express this character, and subtle modifications endow its styling with even more elegance.

The design: The language of dynamics
At the front end, the large single-frame radiator grille has been redesigned. Vertical chrome bars contrast with its black high-gloss finish. The bumpers too have been restyled. Their lower section is now painted in a contrasting black or gray, depending on the body color. The newly integrated underbody protection in the center section of the bumper has a distinctive ribbed design.

As alternatives to the standard halogen headlights, Audi offers a xenon plus variant and a new adaptive-light system that integrates not only low-beam, high-beam and a special superhighway beam but also turning and cornering lights. In conjunction with the xenon headlights, light-emitting diodes assembled to form U-shaped bands provide the daytime running lights. The front blinkers are also composed of LEDs as straight-line arrays, located at the upper edge of the air intakes.
Audi Q7

The side view too, with its coupe-like roofline, low window area and tautly curved body surfaces, reinforces the dynamic look of the Audi Q7. Door moldings have been modified to add interest. The lightweight alloy wheels are size 7.5 J x 18, the wheels size 235/60. In the V6 vehicles they have seven spokes, in the V8 versions they have six.

At the rear end, the bumper has also been given two-tone paintwork; the tailgate, which includes a portion of the rear pillars in an S-shaped contour, has been given a new and distinctively 3D shape in the vicinity of the license plate bracket. To reduce the weight of the Audi Q7, the tailgate has been made of aluminum, as have the engine hood and the fenders. Standard LEDs in the tail lights create a distinctive lighting pattern.

Eleven paint finishes for the Audi Q7 include four new shades: Ibis White, Graphite Gray, metallic, Teak Brown, metallic, and Orca Black, metallic. An aluminum exterior package is optionally available from Audi: gleaming chrome bars in the bumpers and door moldings; the lower portion of the bumpers is painted in the body color; the center portion of the front apron and the diffuser are painted in a contrasting shade.

The interior: Room to spare
Thanks to its luxurious 300-centimeter (118.11-inch) wheelbase within an overall length of 5.09 meters (16.70 feet), the Audi Q7 has interior room to spare, and the interior flexibility is unrivalled. The seatbacks in the second row are divided into three fold-down sections to provide a level cargo floor.

This increases the luggage space from a volume of 775 liters (27.37 cubic feet) to 2,035 liters (71.87 cubic feet). With the leather upholstery option, the middle seat now has an even more comfortable contour.

Two very useful features are optionally available: either a longitudinally displaceable second seat row or individual comfort seats that are separately displaceable. Another available option is a third row for passengers no taller than 1.60 meters (5.25 feet), combined with an improved easy entry function.

A multitude of detailed improvements in the interior enhance the elegance and the sense of well-being. The instrument cluster has been redesigned: the large, round, easily readable instruments are encircled by metallic frames. Interior lights in the door linings and an inlay on the passenger side enhance the interior styling. Many details of the control elements have been restyled and also enhanced by chrome elements.

The selection of interior colors and materials is also new. Upholstery fabrics are available in black and light gray; leather upholstery additionally also in Para Brown, Savannah Beige and Cardamon Beige. Standard inlays are finished in matt black. In optional design packages, aluminum and wood finishes are used.

The power train: Performance and efficiency
The Audi Q7 is available with six powerful and highly efficient direct injection engines, two of them gasoline-powered and four diesel engines, including the world's most powerful diesel SUV, the Audi Q7 V12 TDI. Their power is transmitted via a convenient and fast-shifting six-speed tiptronic to the quattro permanent all-wheel drive, which distributes it between the axles with slightly more than half to the rear.

The 3.0 TDI puts out 176 kW (240 bhp) and delivers as much as 550 Nm between 2,000 and 2,250 rpm, yet on the EU cycle it consumes only 9.1 liters / 100 km (25.85 US mpg). The optionally available 3.0 TDI clean diesel even consumes 0.2 liters (0.05 US gallons) less.

Despite highly complex exhaust gas recirculation and the resulting world's cleanest diesel technology, it consumes just 8.9 liters/100 km (26.43 US mpg). It meets the strict LEV II Bin 5 US standard and already complies with the Euro 6 limits announced for 2014.

The technology of the TDI clean diesel is highly complex. An advanced version of the common rail injection system with 2,000 bars of pressure, new combustion chamber sensors and a high-performance exhaust recirculating system ensure a highly efficient combustion process. An innovative DeNOx catalytic converter reduces the remaining nitrogen oxides. Just upstream of it, a pump injects an additive named AdBlue into the hot exhaust flow, where this solution decomposes into ammonia, which splits the nitrogen oxides into harmless nitrogen and water. Audi partners replenish the additive during regular maintenance servicing.

In the Q7 4.2 TDI too, fuel consumption has been drastically reduced - from 11.1 (21.19 US mpg) to 9.9 liters per 100 km (23.76 US mpg). Yet the V8 diesel is more powerful: with an output of 250 kW (340 bhp) and a torque of 760 Nm, it develops enormous propulsive power. This maximum torque is available in the range from 1,750 to 3,000 rpm.

At Audi, efficiency and dynamics go hand in hand. That's also the case in gasoline engines. The 3.6 FSI, a V6 with a small cylinder angle, has a power output of 206 kW (280 bhp) and delivers 360 Nm between 2,500 and 5,000 rpm. Its average fuel consumption is 12.1 liters per 100 km (19.44 US mpg). The 4.2 FSI, a V8, delivers 257 kW (350 bhp) and 440 Nm at 3,500 rpm. Its fuel consumption is 12.7 liters/100 km (18.52 US mpg).

A novel technology from the Modular Efficiency Platform further improves fuel efficiency in all the engines: the recovery system, which during braking and coasting phases converts mechanical energy into electric energy and buffer-stores it in the battery. It reduces CO2 emissions by up to 5 g/km (8.05 g/mile).

The chassis: Safe and sporty
In its suspension technology too the Audi Q7 is exceptional. As a customer option, Audi equips the Q7 with adaptive air suspension - a pneumatic suspension system that operates in conjunction with an electronic shock absorber control, varies the ground clearance at five different levels, and lets the driver select three driving modes: comfort, automatic and dynamic. In its road handling the Audi Q7 excels in its sporty, highly responsive precision. Off-road, it provides a superior ride on widely varying terrains.

The choice of wheels ranges from 18 inches to the 10 J x 21 top version with 295/35 tires. Ten different designs are available, including two very elegant, high-luster, bicolor versions. Large brake discs provide superb deceleration - with 18-inch diameters front and rear.

Optionally available in the eight-cylinder models are carbon-fiber ceramic disk brakes which further enhance the dynamic character of this performance SUV: they are lighter than their steel equivalents, extremely abrasion-resistant and virtually fading-free. They achieve high driving performance and ensure short braking distances. The diameters of the ceramic discs are 420 millimeters (16.54 inches) in front and 370 millimeters (14.57 inches) at the rear. The calipers are black and adorned with the wording "Audi ceramic". A total of 24 pistons are used on the front and rear axles.

The equipment: Luxury and high-tech
The Audi Q7 comes with a splendid range of standard equipment. The speed-dependent servotronic steering system is standard, as is a double floor in the cargo area complete with a storage compartment and a dirt tray; there is also a roof rack, an automatic air conditioning system, and an MMI radio operating system complete with a CD audio player and eight loudspeakers.

The option program includes luxury features such as the remote key and four-zone automatic air conditioning. Another high-end option is the climate-controlled comfort seat, which can keep the body warm or cool it by means of small fans.

Particularly dynamic Audi Q7 drivers may wish to consider one of two other quality option packages. The S line exterior package enhances the styling with details such as distinctive bumpers and a solid paint finish. The S line sports package includes a black interior, sport seats with Alcantara leather or Verano leather upholstery, aluminum trim (optionally in piano lacquer finish or birch grain wood), special exterior colors, 20-inch wheels, and a firmer setup for the steel spring suspension or the adaptive air suspension.

The Audi Q7 also offers many intelligent solutions for the practical needs of everyday use - such as an electric luggage space cover, a reversible floor mat, a set of luggage rails, a removable ski bag, and a moveable storage box. The options program includes separation grids, an interior bicycle stand, various roof-mounted carriers, a distinctive off-road styling package, and a pivoting trailer hitch: this powerful SUV can tow up to 3.5 metric tons.

In the infotainment field, Audi provides a carefully differentiated selection of modules. The three optional systems are part of the new generation of Audi devices. The top-of-the-line version integrates a hard drive for navigation, music and telephone data, a high-resolution color monitor and 3D map graphics, a DVD player as well as voice control. It can be expanded into a luxury media center with features such as a Bluetooth telephone, a TV tuner, a digital radio tuner, plus rear seat entertainment. A very special highlight is the advanced sound system from Bang & Olufsen with its ten channels, 505 watts of power and 14 loudspeakers.

The range of optional equipment is rounded off by technologies from the luxury class. The radar-supported adaptive cruise control regulates the speed and the distance to the preceding vehicle in a range from 30 to 200 km/h (18.64 to 124.27 mph) by acceleration and deceleration. If a threat is detected, the integrated Audi braking guard warns the driver at two levels.

From a speed of 60 km/h (37.28 mph), Audi lane assist helps the driver stay in lane by means of a camera that recognizes the lane lines. Audi side assist ensures safe lane changes above 30 km/h (18.64 mph) with the aid of a radar system that monitors the traffic pattern within 70 meters (229.66 feet) behind the vehicle. Finally, the Audi parking system advanced assists parking by means of a rearview camera and reference lines on the onboard monitor.

The world's strongest diesel SUV: The Audi Q7 V12 TDI
Even when it was first rolled out, the Audi Q7 V12 TDI, the world's strongest diesel SUV, had a uniquely distinctive look resulting from its large air intakes. The new version features modifications to the interior and the rear end.

The V12 diesel, with a 6-liter (6,000 cc) engine closely related to that of the R10 TDI racing car - a triple Le Mans winner - delivers 368 kW (500 bhp) and develops a torque of 1,000 Nm between 1,750 and 3,250 rpm.

Acceleration from zero to 100 km/h (62.14 mph) in 5.5 seconds and a capped top speed of 250 km/h (155.34 mph) equal the driving performance of a powerful sports car. Despite these impressive performance data, the V12 diesel gets by on an average of 11.3 liters of fuel per 100 km (20.82 US mpg). Its luxurious standard equipment includes 20-inch wheels, a Bose sound system, and many additional features.