The 2011 Mercedes-Benz M-Class is a five-passenger midsize luxury SUV available in ML350, ML350 Bluetec, ML450 Hybrid, ML550 and ML63 AMG trim levels. All models except the ML63 are equipped similarly with standard 19-inch wheels, a sunroof, automatic wipers, automatic headlights, foglamps, dual-zone automatic climate control, cruise control, a tilt-and-telescoping steering wheel, eight-way power front seats, MB-Tex premium vinyl upholstery, the dash-mounted COMAND electronics interface, Bluetooth, the TeleAid emergency telematics service and an eight-speaker stereo with a six-CD/DVD changer and an auxiliary audio jack. Options include the Premium 1 package, which includes a rearview camera, a power liftgate, power-folding mirrors, auto-dimming rearview and driver-side mirrors, driver memory functions, a navigation system, voice controls, satellite radio, an iPod interface, HD radio and 4GB of digital music storage. Standard safety equipment includes antilock brakes, traction and stability control, hill-start assist and hill-descent control, front side airbags and side curtain airbags.