The premiere of the prototype took place at Wortherseetreffen 2007 in Austria. Audi TT Clubsport quattro is a 4WD convertible sportcar without rear windshields. The creation of the vehicle was inspired by Porsche 356 Speedster. The concept is equipped with a supercharged 300-hp engine, S-tronic transmission. The dynamic features haven’t been announced yet. Moreover, the car is equipped with carbon-ceramic brakes and 20-inch rims. Germans Turn Audi TT into Supercar R8 Audi R-Zero Concept car, auto, vehicle, Mercedes, BMW, Bentley, Toyota, Ford, VW, Opel, Lexus concept, hybrid, tuning, Audi TT clubsport quattro Technorati Tags: car, auto, vehicle, Mercedes, BMW, Bentley, Toyota, Ford, VW, Opel, Lexus concept, hybrid, tuning, Audi TT clubsport quattro Auto Dealers