The 2012 Mercedes-Benz GL-Class is a luxurious full-size SUV that offered unparalleled comfort and solid performance. It was available in three main trims: GL350 BlueTEC (equipped with a 3.0-liter V6 turbo-diesel engine producing 210 hp), GL450 (fitted with a 4.6-liter V8 engine generating 335 hp), and the GL550 (powered by a 5.5-liter V8 engine with 382 hp). All were partnered with a 7-speed automatic transmission and an all-wheel drivetrain. Notable features included a sunroof, dual-zone automatic climate control, COMAND electronics interface, and Mercedes' mbrace telematics. Safety highlights consisted of anti-lock brakes, stability control, a driver knee airbag, and the Mercedes-Benz's PreSafe system which prepares the vehicle for an imminent collision. The optional Distronic Plus adaptive cruise control with the PreSafe brake system, which offers autonomous braking capability, was another tech highlight.