Noob cars are a universally despised thing in races... Too easy to get, too over powering, and those who drive them can't drive! But, one might ask, how do you compete with one without looking nooby yourself... What are good substitutes?
Judging from PP, try the car in your avatar. BMW Mclaren F1 GTR. Or you can try the Panoz GTR-1, GT-R LM, Chaparral 2J, Zonda LM or even the Zonda R...
Or if I were you, I'd get a car like the C5-R or the Oreca Viper and slash it with removable upgrades (a high RPM turbo/supercharger if available) and let it be close, if not match, the Furai's PP.
at OP... just try anything that you like I guess, nothing's stopping you from using your favorite cars in racing.