When BMW introduced the X6 Sports Activity Vehicle, people immediately either loved it or hated it. But if the vehicle's role in life was in question, its performance and overall curb appeal were not. It features a laundry list of technological features, not least of which is BMW's xDrive all-wheel drive, which not only transfers torque from the front to the rear, but also side-to-side to optimize its capabilities in all directions. The X6 is available as the xDrive35i with a turbocharged inline six-cylinder engine, the xDrive50i with a turbocharged V8 and the ActiveHybrid. Since the X6 effectively blurs vehicle segment lines in its overall quirkiness, its competitors range from traditional premium SUVs like the Porsche Cayenne or even BMW's own X5 to other low-roof crossovers like the Acura ZDX and Infiniti FX50.