
SSC Ultimate Aero: 257 mph+, 0-60 in 2.7 secs. Twin-Turbo V8 Engine with 1183 hp, base price is $654,400. Tested in March 2007 by Guinness world records, The SSC Ultimate Aero takes the lead as the fastest car in the world beating Bugatti Veyron.
Source
The SSC Ultimate Aero is the 3rd most expensive car in the world and is definitely one of the best cars in the world today.