The compact crossover SUV is a versatile market. You can find them from almost pure off-road to almost pure luxury. The GLK 350 is a small luxury crossover SUV that seats five. It has a 3.5 liter V6 engine that puts out 268 horsepower. It has 19-inch wheels, rear-wheel drive, and a 7-speed automatic transmission. The transmission has settings of Manual, Comfort, and Sport. It is rated at 16 mpg in the city and 23 mpg on the highway.