The X166 Mercedes-Benz GL-Class is a full-sized luxury SUV produced from 2012 to 2019. It is the second generation model in the GL-Class range, and was renamed GLS-Class as of the 2016 facelift.
The X166 GL-Class debuted at the 2012 New York International Auto Show and later went on sale on September 2012. Compared to its predecessor, the GL-Class is 10 mm (0.4 in) taller, 14 mm (0.6 in) wider, 21 mm (0.8 in) longer, and up to 100 kg (220 lb) lighter.
Standard equipment includes the COMAND system with a 5.8-inch display, LED headlights, and an adaptive air suspension for up to 285 mm (11.2 in) of ground clearance. Options include soft close doors, rear-seat infotainment displays, 20 and 21-inch wheel options, and an off-road package that adds an increased ride height, a skid plate, and a low-range gearbox. The GL-Class is also available with driver assistance systems such as active cruise control, lane-departure warning, and blind-spot monitoring systems.