The E350 and E350 Bluetec sedans come standard with 17-inch wheels, a sunroof, a power tilt-and-telescoping steering wheel, power front seats with memory functions, dual-zone automatic climate control, auto-dimming mirrors, MB-Tex premium vinyl upholstery, the COMAND electronics interface, Bluetooth and an eight-speaker stereo with a six-CD changer and auxiliary audio jack. The E350 coupe is similar, but adds a panoramic sunroof and sport seats. The wagon adds to the sedan a power tailgate and rearview camera. The Cabriolet adds standard leather upholstery, a full power cloth roof and the AirCap wind-deflector system. The Premium 1 package available on all E350 and E550 models includes a power rear sunshade, a hard-drive-based navigation system, voice controls, a rearview camera, heated front seats, and a Harman Kardon surround-sound audio system with digital music storage, HD radio, satellite radio and an iPod/MP3 player interface. The 2011 Mercedes-Benz E-Class comes standard with antilock disc brakes, stability and traction control, front side airbags, front pelvic airbags, side curtain airbags and a driver knee airbag.