The five-passenger Range Rover is available in two trim levels: HSE and Supercharged. The HSE is powered by a 375-hp 5.0-liter naturally-aspirated V8 engine, while the Supercharged trim boasts a 510-hp 5.0-liter supercharged V8. Both powerplants feature direct fuel injection and are mated to a six-speed automatic transmission with CommandShift manual mode; full-time four-wheel drive with Land Rover's acclaimed "Terrain Response" system and an electronic air suspension help tackle a wide range of off-road conditions. Standard equipment on HSE trims includes a power sunroof, 19-inch alloy wheels, bi-xenon headlights, LED tail lamps, heated leather seats, dual-zone automatic climate control, hard drive-based navigation system, satellite radio, Bluetooth wireless connectivity and a portable audio interface with USB and iPod integration. Supercharged trims are further outfitted with 20-inch wheels, cooled front seats and upgraded interior trim elements. Standard safety features include seven airbags, four-wheel anti-lock brakes with brake assist, electronic stability control with traction control and roll mitigation, front and rear park assist and tire pressure monitoring. A Vision Assist Package offers adaptive front lighting and automatic high beam assist, along with blind spot monitoring and a surround camera system. After an extensive refresh last year, the Land Rover Range Rover carries over with minimal changes for 2011. A new Autobiography Black Limited Edition celebrates the 40th anniversary of the Range Rover.