Beneath the hood, the Audi TT landed with a turbocharged four-cylinder 1.8-liter engine as a base, the identical mill with a bigger turbo, or a naturally aspirated six-cylinder Volkswagen VR6. That gave the Audi TT both 178 horsepower, 222 hp, or 247 hp with the V6. A guide transmission was initially obtainable, and a quattro-branded Haldex all-wheel-drive system was optionally available. The V6 got here with a quattro system as customary, and in 2006 a six-speed dual-clutch transmission was launched together with stiffer suspension. The Audi TT was additionally the primary automotive to function Volkswagen Group’s Turbocharged Direct Injection (TDI) diesel engines.

In 2005, the TT acquired its first restricted version. The Audi TT quattro Sport (Audi TT Membership Sport in Europe) used the 1.8-liter turbocharged engine with an improve to 237 hp and a weight discount of 165 lbs. Weight was dropped by eradicating the spare wheel, harmonic damper, and rear seats. Lighter Recaro entrance seats had been fitted as effectively. The battery was moved to keep up steadiness, and it got here with a two-tone paint scheme, unique 15-spoke, 18-inch wheels, and the physique package from the V6 mannequin.