Updated for 2014, the Audi A6 is a mid-size luxury sedan that is available with a standard 2.0-liter turbocharged 4-cylinder engine (220 hp/258 lb-ft of torque), optional 3.0-liter supercharged V6 engine (310 hp/325 lb-ft of torque), and optional 3.0-liter turbocharged six cylinder TDI engine (240 hp/428 lb-ft of torque). Audi quattro AWD can be paired to a CVT or an 8-speed automatic transmission, for an EPA estimated range of 18 mpg city to 38 mpg highway, depending on engine selection. Features include LED taillights, heated side mirrors, heated windshield nozzles, xenon headlights with LED daytime running lights, front and rear parking sensors, leather interior, heated steering wheel, four-zone automatic climate control, heated front/rear seats, sunroof, keyless start, BOSE® sound system, navigation, and hands-free phone capabilities. Safety is comprised of front head airbags, head curtain airbags, thorax side airbags, knee airbags, anti-lock braking (ABS), electronic brake distribution (EBD), traction control (TCS), electronic stabilization, and night vision with pedestrian detection. The A6 is backed by a 4-year/50,000-mile warranty.