Every GLK350 is powered by a 3.5-liter V6 good for 302 horsepower, strong output for a crossover of its size. A seven-speed automatic transmission comes standard, and all-wheel drive is a popular option. Although the GLK doesn't offer the same of level of standard equipment the brand's larger crossovers, you do get sufficient luxury such as power front seats with driver memory, LED running lights and Bluetooth phone.
From there, you can add a plethora of features that push the GLK into full-fledged luxury territory. Most buyers will consider the Leather Package to be essential. In addition to leather upholstery, you get extra lumbar adjustments, passenger memory and upgraded headrests. A power liftgate and panoramic sunroof are included in the Premium Package, which is also highly desirable in this class of vehicle.
A navigation system is available as part of the Multimedia Package, which also adds a rearview camera, 10GB of audio storage and an upgraded dash display with DVD capability. For safety, there's the Lane Tracking Package with blind-spot and lane-departure warning systems.
On the outside, you can add the Appearance Package, which includes 20-inch wheels, aluminum roof rails and a chrome tailgate strip. A different effect can be achieved with the Sport Package, which gets AMG-spec 20-inch wheels and styling details, plus specific LED running lights. Finally, the Lighting Package outfits the GLK with adaptive bi-xenon headlights with washers and automatic high-beam control.
Popular individual options include an automated parking system, keyless ignition, heated front seats, satellite radio and a premium Harman Kardon sound system.