Lamborghini Reventon

$1,500,000
650 hp
Top Speed: 221 mph
Zero to 60: 3.4 seconds

Lamborghini produced only 21 models of its most expensive car to date. The impressive 6.5 liter V-12 engine was put to the test when it raced, and nearly beat, a fighter plane in 2007. Each model has a gray carbon-fiber shell.