The fastest car is the Toyota Supra. Put all level 5 parts on it and it can reach 250 mph. The Corvette Z06 is one of the fastest cars in the game. Tune as follows and it will be able to reach over 270 mph. Set everything to level 5 except Gearbox (level 3) and Differential (level 4). Note: This car is fast but has too much hp for drifting. To get good drift car, it is best if it is between 400 and 500 hp and with Drift Tires level 4. Gearbox for drift cars should always go to level 3 and Turbo/Supercharger to level 2 or 3.