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.
SEAT Exeo
Transmission options initially included only a six speed manual gearbox. Shortly after launch, the LuK originated multitronic continuously variable transmission (CVT), with selectable six or seven speeds, became available on models equipped with the 2.0 TSI petrol and 2.0 TDI diesel engines. Distribution of the engine torque to the driven roadwheels is only via the front wheels, and there is not a four-wheel drive offering, which the Audi A4 used as an option in its 'trademark' quattro.