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<< Prev Page 2 of 3 Next >>  The R8 is the dynamic spearhead of Audi. In its second generation, the high-performance sports car has been newly developed from the ground up - it is more taut, more striking and more fascinating. The high-revving V10 engine is available in two performance variants. In the top-of-the-range version with 449 kW (610 hp), it develops breathtaking power."Motorsport is in Audi's DNA, it is part of our brand's character," says Prof. Dr. Ulrich Hackenberg, Board Member for Technical Development at Audi. "With the new R8, our engineers are bringing accumulated racing expertise from the race track onto the road. No other model of ours evokes more dynamic emotion, none is closer to a race car. The new R8 V10 plus is the most powerful and fastest series production Audi of all time." The mid-engine principle used for the Audi R8 is not only a classic concept in motorsport but also an important piece of Audi tradition. The powerful engines were located in front of the rear axle even in the Grand Prix race cars brought to the start line by Auto Union in the 1930s - a revolutionary step at the time. In 2000, Audi won the 24-hour Le Mans endurance race with the LMP R8 prototype for the first time. By 2005, the car which provided the name for today's series-production high-performance sports car had secured five overall victories at the Sarthe - the name chosen for the road version of the super sports car from Audi, R8, indicates the technological relationship between the two winners. As the R8 LMS, the Audi R8 is also highly successful in customer racing. The basis for its success: motorsport was part of the development strategy from the very beginning. In 2009, the R8 LMS customer racing race car began its success story which would lead it to more than 190 victories and 23 championship titles worldwide. Technically speaking, it is closely related to the road version of the sports car with around 50 percent of the same parts. The new generation of the Audi R8 utilizes the latest development of the ten-cylinder engine. With its spontaneous throttle response, quick revving up to 6,500 rpm and inimitable roaring sound, the naturally aspirated 5.2 FSI engine is enough to give you goose bumps. In the new R8, the freely aspirated V10 engine offers even more power and torque than before. Controllable flaps in the exhaust pipe and an optional sport exhaust system make the car sound even more characteristic. The ten-cylinder engine is available in two versions. In the R8 V10, it develops a power of 397 kW (540 hp) from its 5,204 cc displacement and a torque of 540 Nm (398.3 lb-ft) at an engine speed of 6,500 rpm. The sprint from 0 to 100 km/h (62.1 mph) takes just 3.5 seconds, and it can reach a top speed of 323 km/h (200.7 mph). The R8 V10 plus is even more powerful and is the fastest series-production Audi of all time. It develops 449 kW (610 hp) and its maximum torque of 560 Nm (413.0 lb-ft) is available at 6,500 rpm. The performance figures are equally impressive: 0 to 100 km/h (62.1 mph) in 3.2 seconds, 0 to 200 km/h (124.3 mph) in 9.9 seconds, and a top speed of 330 km/h (205.1 mph). A further innovation in the 5.2 FSI engine is the additional indirect injection. It complements the FSI direct gasoline injection, lowers fuel consumption and enhances engine output. Moreover, the R8 features yet another innovative system in the form of COD (cylinder on demand). It shuts off one of the two cylinder banks by deactivating injection and ignition. The R8 V10 consumes an average of 11.8 liters of fuel per 100 kilometers (19.9 US mpg) with CO2 emissions of 275 grams per kilometer (442.6 g/mi), for the R8 V10 plus those values are 12.4 liters per 100 kilometers (19.0 US mpg) and 289 grams per kilometer (465.1 g/mi). The fuel consumption reduction of up to 10 percent compared to the previous model is also due to the new start-stop system. The dry sump lubrication completes the technology package of the 5.2 FSI. The ten-cylinder engine is hand built in the Hungarian engine plant in Györ. As a traditional motorsport technology, it allows for low installation of the engine, which is particularly beneficial for the car's center of gravity. What's more, it also ensures oil supply even under extreme lateral acceleration. In both engine versions, power is transmitted to a rapid-shifting seven-speed S tronic transmission installed behind the engine. The S tronic has three automatic modes and can also be controlled manually. Shift commands are transmitted electronically (shift-by-wire). The launch control system manages full-throttle acceleration from a standing start. Another function of the S tronic comes into play when the driver's foot is removed from the accelerator pedal at speeds above 55 km/h (34.2 mph). In such cases, both clutches open and the car goes into coasting mode. This function saves a considerable amount of fuel, especially in everyday use by the customer. The quattro permanent all-wheel drive system gives the new R8 a decisive plus in terms of stability and traction when compared with two-wheel-drive competitors. On the front axle, an electrohydraulic multi-plate clutch replaces the Visco clutch of the predecessor model. The newly developed quattro drive system enables completely unrestricted and fully variable distribution of the drive torque to the front and rear axles depending on the driving situation and weather. In normal operation, up to 100 percent is transmitted to the rear wheels and, if required, the clutch continuously diverts up to 100 percent of this torque to the front wheels. Thanks to the mechanical differential lock on the rear axle, the driver experiences maximum traction without any slip. In the chassis of the new Audi R8, double wishbones made from aluminum guide all four wheels. The R8 V10 plus has a particularly sporty setup - for both engine variants, variable adaptively controlled Audi magnetic ride shock absorbers are available as an option. The newly developed electromechanical power steering system provides close contact to the road surface and makes a further contribution to reducing CO2 emissions. As an option, Audi offers dynamic steering, whereby the steering ratio varies in accordance with the road speed and the settings in the Audi drive select dynamic handling system. As standard, the new Audi R8 V10 has 19-inch wheels with size 245/35 tires at the front and 295/35 at the rear. Upon request, Audi is also offering 20-inch wheels for the first time in the R8. With this option, the tires are size 245/30 at the front and 305/30 at the rear. The steel brake disks have a weight-saving wave design and the calipers can be painted red upon request. In the R8 V10 plus, high-tech disks made from carbon fiber ceramic are responsible for deceleration of the 20-inch wheels (optional for the V10). In the Audi drive select dynamic handling system, the driver has the choice of four modes (comfort, auto, dynamic and individual) to control the way in which important technical components operate. As standard, the system takes into account the engine characteristics, steering, S tronic transmission and quattro drive system as well as optional extras such as Audi magnetic ride, the exhaust flaps and dynamic steering. On top of that, there is also the new performance mode (available as an option for the V10 and standard for the V10 plus). The driver activates it by pressing a separate button on the steering wheel. He or she can select between the programs dry, wet and snow using a rotary wheel. These programs support dynamic handling on dry, wet and snow-covered surfaces. In performance mode, Audi drive select also makes use of the ESC stabilization control function. The R8 V10 plus has a dry weight of 1,454 kilograms (3,205.5 lb). The key factor behind the consistent lightweight design is the body shell with multimaterial Audi Space Frame (ASF): It weighs only 200 kilograms (440.9 lb). The resulting unladen weight of 1,555 kilograms (3,428.2 lb) leads to a superior power-to-weight ratio of 3.46 kg/kW (2.55 kg/hp). The ASF body shell features a completely new multimaterial lightweight construction concept. Components made from carbon fiber reinforced plastics (CFRP) form the B-pillars, the central tunnel and the rear wall. The front section of the vehicle, the roof arch and the rear section form a framework made from cast aluminum nodes and aluminum profiles which, in some cases, employ new alloys. As always with the ASF, each component is precisely designed for its location and purpose. Accordingly, the engineers have now integrated some components into the body shell due to their function. Leaving aside its components, the body shell is now around 15 percent lighter than its predecessor. At the same time, torsional rigidity is roughly 40 percent better. Particularly with regard to rigidity, the body of the new Audi R8 is a benchmark. The resulting lightweight construction is unparalleled among the competition. The multimaterial Audi Space Frame in the new Audi R8 is extremely light and rigid, whilst also being acoustically comfortable and offering a high level of safety. The outer skin is made entirely of aluminum, but as an optional extra (or as standard for the V10 plus), Audi also offers attachment parts made from clear-coated carbon fiber, for example the front splitter, the diffuser or the side blades. A long, rising diffuser in the underbody produces downforce on the rear axle at higher speeds. << Prev Page 2 of 3 Next >> |
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