As the SUV market matured, one of the last open niches was for small luxury SUVs. Models like the BMW X3 and Acura RDX appeal to buyers that might not have otherwise been shopping the luxury brands. The GLK is Mercedes-Benz entry in this segment. The hard-edged styling is a break from other Mercedes SUVs and the competitive vehicles. The GLK is smaller than other vehicles in the segment with a shorter wheelbase but wider track. Both 2WD (RWD) and AWD drivelines are offered, all powered by a 3.5L V6.

A new AMG Sport Package features new bumpers and unique 20-inch wheels.