The $1.7 Million Bugatti Veyron 16.4 at the San Jose Auto Show. This monster, with a top speed of 253 miles per hour, sports an 8-liter quad turbo engine that does 0 to 60 miles in a lightening 2.6 second. Even though it is no longer the fastest car in the world, it still is the most expensive. Bugatti Veyron 16.4 was indeed the fastest car at one time. It has since been surpassed as the fastest car by the SSC Ultimate Aero TT on September 13, 2007.