The 2014 Audi S8 is part of the automaker's fourth generation A8 lineup. As a high-performance variant, it boasts a twin-turbocharged 4.0L V8 engine that delivers an impressive 520 horsepower. Coupled with quattro all-wheel drive and an 8-speed automatic transmission, the S8 offers exhilarating performance alongside luxury and refinement. Inside, occupants are greeted with a sumptuous interior featuring high-quality materials, including Valcona leather and carbon fiber trim. A standard 8-inch MMI infotainment system, navigation, Wi-Fi hotspot and a 14-speaker Bose surround-sound system lead the tech offering. Safety-wise, the S8 equips Audi pre sense basic, eight airbags, and a rearview camera, while higher trims add adaptive cruise control, lane-keeping assist, and a night-vision assistant.