Mercedes GLS-class aims to deliver an undeniably upscale experience, and it succeeds. This large three-row SUV has room for the whole family and pampers everyone with its tech-rich cabin, comfortable ride, and fancy interior materials. Buyers can choose from either a 362-hp turbocharged inline-six or a 483-hp twin-turbo V-8, both of which benefit from a hybrid-assistance system. Despite that technology, neither powertrain provides very impressive fuel efficiency, but at least the GLS's EPA ratings are in line with those of rival SUVs such as the Land Rover Range Rover and the Lincoln Navigator. All-wheel drive comes standard, as does an air suspension, but Mercedes offers a pothole-sensing upgrade that also increases ground clearance.