One of the planet's sexiest automobiles, the Audi R8 isn’t just a pretty face. Its performance is every bit as beautiful as its looks, as evidenced by its 3.6-second 0-100 km/h time—and that’s just the base version! That figure drops to 3.3 seconds for the most powerful version. It’s the real deal. The 5.2L V10 generates up to 610 horsepower. A slightly more sensible variant is said to be in the works and the convertible R8 Spyder will soon be available too.