So, has anyone else encountered the reatarded muscle car glitch?
If you buy a Dodge Dart and put a Viper engine in it (which is infinetly better) it gains 100 HP and loses more than 100 PI. Then you can add other upgrades to bring the cars PI back up, giving you Darts that are really S, R3, and R2 class cars racing in E through B class. To make matters worse, it works with a whole host of muscle cars, they just need a donor from the same manufacturer.
This really pisses me off, my B-Class Lotus Elise (which is legal!) is deadly fast but there's no way it can keep up with cars that are doing 60 mph more on the straights. I won 5 of my first 8 races in it but now I'm always just first among the non-muscle cars.