The S6 is equipped with a powerful 435-hp 5.2-liter V10 engine with direct fuel injection, a six-speed automatic transmission with Tiptronic manual mode and paddle shifters, and quattro all-wheel drive. Building on the A6 4.2 sedan, every S6 is outfitted with a power sunroof, bi-xenon adaptive headlights, LED daytime running lights, leather upholstery, heated front and rear seats, dual-zone climate control, Advanced Key passive entry/start, satellite radio, Bluetooth wireless connectivity, an Audi Music Interface with iPod integration and a voice-activated navigation system with integrated rear camera parking assist. Additional standard equipment exclusive to the S6 includes a sport-tuned suspension, 19-inch alloy wheels with performance tires, aluminum-optic exterior mirrors, sport seats and aluminum interior trim elements. Standard safety features include electronic stability and traction control systems, 4-wheel anti-lock brakes with brake assist and front, front side-impact and overhead curtain airbags; rear side-impact airbags and an Audi Side Assist blind spot monitor are optional.Following an extensive redesign last model year, the Audi S6 carries over with minimal changes for 2010. Heated rear seats are now standard, and a new third generation MMI (Multi Media Interface) makes its debut, boasting a DVD player and internal memory for music file storage.