Audi S6
Audi made a high-performance, 4.2-litre V8 engine (parts code prefix: 077, identification code: AEC) with a Bosch KE-Motronic ECU available as an option in the original European S4s, and made the decision to continue to do so with the S6, making a version of the 4.2 available as an optional upgrade over the 2.2-litre inline five-cylinder turbo. Unlike the five-cylinder turbocharged version, the V8-powered S6 was supplied with a four-speed automatic transmission as standard, but kept the quattro four wheel drive. A six-speed manual gearbox was also available as an option.
Saturn S series
The base SL model featured the MP2 manual transmission only, and it had manual steering. The SL1 trim level featured the option of the same MP2, or the MP6 automatic transmission. Both were offered only with the SOHC 1.9L I4 "LKO" engine that produced , which was rated at 27 mpg (8.7L/100 km/32 mpg) City, 34 mpg (6.9L/100 km; 41 mpg) Highway. The SL2 trim level featured the MP3 manual transmission, or the MP7 automatic transmission, both exclusively with the DOHC 1.9L I4 LL0 engine that was rated at , 24 mpg (9.8L/100 km; 29 mpg) City, 34 mpg (6.9L/100 km; 41 mpg) Highway.