I was an SCCA road racer so I know how a car should react, so did the physics engineers for Forenza Motorsports 2!
Something I learned when racing SCCA competition is that being smooth, fluent in motion, and not squealing tires means you are fast. The same holds true in FM2. Try running a few laps with tires howling in the corners and the car fishtailing out of them under maximum throttle, and then try running them with little to no tire noise. You will feel like you are turning slower laps until you see multiple seconds quicker when crossing the start/finish line. That is realism, baby!
The game just plain rocks.