The GT9-R is based on Porsche’s most successful car, the iconic 911. It can do 0-62mph (0-100km/h) in 2.9 seconds and was designed specifically to try and take the title of fastest car in the world.

It made its claim for the record by boasting a 257mph top speed — only to have the Bugatti Veyron come along and rain on its parade before it could be officially verified. You’ve got to feel sorry for the guys who made it. The GT9-R  has a  heavily modified 4.0 liter flat 6 engine that produces up to 1,120 bhp. It costs from $695,000.