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 A6
Available as the S6 saloon and S6 Avant, they included twin-turbo V8 engine rated at 5500–6400 rpm and at 1450–5250 rpm, recuperation and start-stop systems, cylinder deactivation, Active Noise Cancellation system, seven-speed S tronic transmission, quattro permanent all-wheel drive system with a self-locking center differential and torque vectoring (optional sport differential), adaptive air suspension lowers the body by , internally ventilated brake discs (optional carbon fiber-ceramic discs), matte black calipers with S6 logos, 8.5Jx19-inch cast aluminum wheels in a unique five parallel-spoke design (optional seven different 19- or 20-inch wheels (four from quattro GmbH), including 20-inch titanium-look wheels with a five-arm rotor design), 255/40-series tires, Audi drive select driving dynamics system, optional dynamic steering, single-frame grille with aluminum applications and chromed horizontal double bars, exterior mirrors feature aluminum-look housings, S6 sedan with spoiler on the trunk (S6 Avant has a roof spoiler), diffuser on the rear bumper in platinum gray with an aluminum-look offset edge, four elliptical chrome-tipped tailpipes, choice of eight body colors (including exclusive shades Estoril Blue, crystal effect and Prism Silver, crystal effect), body decorated with S6 and V8T badges, leather sport steering wheel with colored stitching, footrest and pedals and soft keys of the MMI operating system in an aluminum-look finish, decorative inlays in matt brushed aluminum (optional carbon, fine grain ash natural brown, layered Beaufort oak), choice of 3 colours for headlining, instrument panel, carpet and seats (black, lunar silver and goa beige (only for the seat upholstery)); Pearl Nappa leather and Alcantara seat upholstery (optional Milano and Valcona leather), height-adjustable sport seats with power lumbar supports and embossed S logos (optional power-adjustable comfort seats with memory function, power-adjustable S sport seats with integrated head restraints).