Audi TT GT4 race car

Audi has announced a GT4 version of its TT RS, which has been developed with input from quattro GmbH and is aimed at customer race teams. Last weekend saw its unveiling in concept form, during the final round of the 2010 DTM series in Shanghai.

GT4 racing is designed to be less expensive than other categories such as GT3. So, while braking, transmission and some suspension parts can be modified for competition use, other components - including the engine - are left as standard as possible.



That means that the TT GT4’s TFSI motor has an output of around 335 bhp (250 kW / 340 PS), which is the same as for the production TT RS. The race car does come with S tronic transmission and a differential lock, though.



To further help keep costs down, GT4 regulations don’t allow for any additional aerodynamic aids. Therefore the aprons, side skirts and rear spoiler on the race car are all based on those usually seen on the road-going TT RS.



However, the TT GT4 does come equipped with plastic windows, while the bonnet, boot lid and doors are all made from carbon fibre reinforced plastic. Naturally, it also gets essential safety equipment including a full roll cage and replacement fuel tank.



Audi is keen to target customers in both Europe and Asia with the TT GT4, and it will have a selling price of around €120,000 (roughly £101,100 / US$157,250).



When the TT GT4 appears in championships such as the GT4 European Cup, its competition will include cars like the Ginetta G50, Aston Martin V8 Vantage N24, Porsche Cayman and Chevrolet Corvette C6.