The Mercedes Benz GLK is a compact crossover based on the C-Class, and with it an all-new four-cylinder Bluetec diesel engine. The combination of this style with that engine makes for a wicked little 'Ute, one that offers up looks, convenience and performance in its class. Mercedes GLK powered by a 270-horsepower 3.5-liter V-6 engine, mated to the automaker's seven-speed automatic transmission