Audi Ur-S4 / Ur-S6
The Ur-S4 was produced from 1991 to 1994, while the Ur-S6 was produced from 1995 to 1997. They both featured a 2.2 litre, 5-cylinder engine with turbocharging and an intercooler, with of torque. In Europe, V8-powered versions of both S4 and S6 were available. The S4 version sported a engine (the same "ABH" engine as in Audi V8), the S6 had an upgraded engine "AEC" with . American versions featured a 5-speed manual transmission and in Europe a 6-speed, as well as a 4-speed automatic transmission could be substituted.
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.