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.
Audi A5
Available in coupé body, the RS5 features a 4.2 FSI engine rated @8250rpm and @4000-6000rpm, coupled with a seven-speed S tronic transmission and quattro permanent all-wheel drive with crown-gear centre differential and electronic torque vectoring. It has 19 inch alloy wheels in an exclusive five arm structure design with 275/35 tires (optional 19 inch winter wheels), diameter ventilated aluminum front brake discs (optional diameter carbon ceramic front brake discs), aluminum 8 piston brake calipers with RS logos in high-gloss black, electronic stabilization program with integrated sport mode, speed dependent servotronic steering, Audi drive select with three (4 with MMI navigation system) modes of operation (comfort, auto, and dynamic, optional custom), and optional dynamic steering.