Audi S4
Audi's quattro four-wheel-drive system was standard on the C4 S4/S6; a first-generation Torsen-based system which used the "T-1" automatically biasing centre differential (ATB) was used on vehicles equipped with manual transmissions, while a transfer box based system was used on vehicles equipped with an automatic transmission.
Audi Le Mans quattro
The Le Mans quattro's engine was a development of the Gallardo's, with the same displacement but utilizing different cylinder heads as well as twin-turbochargers and Fuel Stratified Injection (FSI) technology, resulting in the high output of , and of torque. The gearbox is the six-speed sequential manual transmission used in the Lamborghini Gallardo.