2008 Mercedes-Benz SLR McLaren

Last year, the Mercedes-McLaren SLR supercar’s big news was a special version, the 722 Edition. This year, there’s a new droptop. The roadster has the same 617-hp V-8 as the coupe, and in less than ten seconds, the semi-automatic fabric roof opens up to reveal the inside of the fastest convertible in the world.