Bonus Pace Cars
Complete championship mode four times to unlock the Acura NSX, BMW M3, Toyota Celica, and Pick Up-Truck pace cars.
Disable opponents in Championship mode
To disable an opponent in championship mode, just ram the back of his car. If done correctly, his car's back wing will break and he'll be unable to go fast until he reaches his pit stop. You must have the no collision damage option for this to work. Otherwise your car will suffer heavy damage.