If desired, purchase The 2006 Chevrolet Corvette C6.R for $250,000 (U.S. dealership). Note: This car is already modified for racing and will not need any upgrades. It is a LeMans car and will have touchy steering, even at speeds of 150mph and above. Its stats are:
BHP: 570
Weight: 2437
Torque: 620
Drive: FR
If you want a fast car for about $120,000, purchase a 2006 Chevrolet Corvette C6 for $65,850 (not the C6R). Put on following upgrades.