Audi S4
Acceleration from a standstill to takes 5.1 seconds for the saloon with manual gearbox, the Avant one tenth of a second slower at 5.2 seconds. The same dash to 100 km/h in the saloon with S tronic takes 5.3 seconds, and the Avant at 5.4 seconds. The top speed is electronically limited to . However, a comparison in the American automotive magazine "Road & Track" showed the sprint from 0 to 60 mph in only 4.5 seconds for the 6-speed manual transmission. With figures like these, the B8 S4 accelerates more quickly than its V8-engined predecessors. Audi of America claims that the version of the S4 achieves 28 highway miles per gallon, and a 0 to acceleration time of 4.9 seconds with the manual transmission and 5.1 seconds with the S tronic. Fuel consumption is rated at a combined . Therefore, the B8 S4, unlike the V8-powered B6/7 models, avoids the US gas guzzler tax. The B8 S4's 3.0 TFSI engine also gets only 1 m.p.g. less than the base 2.0 TFSI engine. This is one of the most important reasons for Audi to downsize their engines, while keeping the output equivalent better, by using forced-induction such as supercharging or turbocharging.
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.