One of the most popular vehicles in its class when it was new, the GLK continues to be popular on the used market. The interior is luxurious with plenty of wood and leather. Seating is comfortable as you would expect in a Mercedes-Benz. There is an abundance of technology that can be challenging for the less technologically savvy. Like most vehicles in this class, interior room and cargo capacity are not abundant. However, the cargo floor is low and makes for easy loading and unloading. When equipped with the 3.5 litre V6, the performance is strong and the fuel economy reasonable. This baby Benz SUV is a retained value winner for 2018.