Audi is once again producing a five-cylinder motor - and a very special one at that. Arriving at dealers this summer, the Audi TT RS has a turbocharged 2. 5-liter motor with direct gasoline injection; it produces 250 Kw (340 bhp) and 450 Nm (331. 90 lb. -ft. ) of torque. The blazing five-cylinder motor allows the Audi TT RS to perform extraordinary feats. In conjunction with quattro permanent all-wheel drive and a high-performance chassis, the motor makes the compact Audi TT RS a top-notch sports vehicle - available as a coupé or roadster.
Sporty five-cylinder gasoline engines have a long legacy at Audi. The most famous is arguably the turbocharged 2. 1-liter motor in the Audi quattro. The first version, which was launched in 1980, provided an cool 147 Kw (200 bhp). And the Audi Sport quattro from 1984, directly inspired by motorsport, provided a whopping 225 Kw (306 bhp). For 25 years, turbochargers and quattro have been a dynamic formula for success.
Audi has resumed using this recipe. Developed from scratch, the five-cylinder motor features a turbocharger with FSI direct gasoline injection to elevate the Audi TT RS to a high-performance sports vehicle. The TFSI provides 250 Kw (340 bhp) from a displacement of 2480, cc (151. 34 cu in): a specific output of 100. 8 Kw (137. 1 bhp) per liter.
The power-to-weight ratio is also impressive. In the case of the Coupé, which weighs in at a mere 1450, kilograms (3196,. 70 pounds), the power-to-weight ratio is just 4. 3 kilograms per bhp. The Audi TT RS Roadster has a weight of 1510, kilograms (3328,. 98 pounds) and a power-to-weight ratio of 4. 4 kilograms per bhp - due to its extremely lightweight and largely aluminum body constructed as per the Audi Room Frame principle.
The BMW M3 CRT (carbon Racing Technology) embodies a concentrated blend of state-of-the-art development expertise - inspired directly by motor sport - in the areas of drive system and chassis technology and intelligent lightweight layout. It also introduces the worldwide debut of a new production workflow for carbon-fibre reinforced plastic (CFRP) elements in the auto market. This workflow enables CFRP to be presented widely in the construction of the high-performance BMW M3 Saloon-based sports vehicle created by the BMW M Gmbh factory. And that helps it achieve a weight-to-power ratio of 3. 5 kilograms per horsepower. A V8 motor with customary M high-revving characteristics and maximum output of 331 Kw/450 hp accelerates the BMW M3 CRT from 0 to 100 km/h in just 4. 4 seconds.
The BMW M3 CRT will be manufactured by the BMW M Gmbh factory in a limited run of 67 units. Following in the tyre tracks of the BMW M3 GTS - of which 135 examples were manufactured - this is the second small-series, high-performance BMW M3 off-shoot to be bred for the race track but registered for the road. The exclusive character of the Saloon is emphasised by bespoke lightweight layout elements produced as part of an high-tech production workflow. The bonnet of the BMW M3 CRT and the bucket seatings for the driver and front passenger are made from a cellular carbon honeycomb, which is manufactured in a globally original workflow pioneered for the manufacture of body elements for the BMW i3 and BMW i8 models.
These new models - thanks to enter volume production in 2013 and equipped with high-tech electric and BMW Activehybrid drive system technology - will option a body consisting completely of CFRP in the passenger cell space. In a new development, the production workflow presented for this purpose allows the cuttings left behind in the construction of the body to be reprocessed. The general fabric (made up of carbon fibre thread) can now be woven into CFRP mats of any size before being impregnated with synthetic resin and hardened in a alike way to the fabric used in the body of the BMW i3 and BMW i8. For the BMW M3 CRT this enables the creation of a bonnet made from two CFRP mouldings encasing an aramid honeycomb structure. This construction imbues the bonnet with the strength of a traditional metal equivalent, but at roughly a quarter of its weight. The weight saving over the aluminium bonnet of the traditional BMW M3 Saloon is around 50 per cent.
The fabric manufactured via this high-tech manufacturing technology is also used for the car's bucket seatings. Here, the CFRP layers are wrapped around a recycled-paper honeycomb, with a carbon layer made using traditional production technology added to visible areas. CFRP is also used to make both the back spoiler of the BMW M3 CRT and an air-channelling element integrated into its front apron.