2015 BMW 6 Series 650i

The 6 Series is BMW's large grand tourer, offered as a coupe, convertible, and the four-door Gran Coupe. It's a relaxed cruiser that eats up highway miles, with a smooth ride and plenty of power on tap. Inside, you get a high-quality cabin with comfortable seats and a generous amount of tech for the year. The Gran Coupe's four doors make it the practical pick, though the coupe and convertible are more about style. The 650i convertible is the drop-top for buyers who want the V8's muscle without the extra weight of all-wheel drive, while the xDrive version adds grip in the wet.