The GLK350 is powered by Mercedes' familiar 3.5-liter V6 that develops 302 horsepower and 273 pound-feet of torque. A seven-speed automatic transmission is standard. The GLK250 Bluetec utilizes a 2.1-liter four-cylinder diesel engine that makes 200 hp and 369 lb-ft of torque, along with the seven-speed automatic. Mercedes' 4Matic all-wheel-drive system is optional on the GLK350 and standard on the GLK250 Bluetec.
GLKs come standard with dual-zone climate control, power front seats, leatherette upholstery, Bluetooth and a six-speaker audio system. Optional luxuries include a panoramic sunroof, a navigation system, a rearview camera and a premium surround-sound audio system. Buyers can also opt for rear-seat DVD entertainment, full leather seating, bi-xenon headlights, rear parking sensors and more.