Performance Points. Once you complete the C, B and A event classes, you unlock the Quick Tune settings where you can alter your car's power, weight, aerodynamics etc which changes the car's PP. Depending on the car and the race, you could increase or decrease the PP to enter.
Quick Tune also allows you to adjust the suspension and gearing etc, which don't change the PP.
Quick Tune also allows you to adjust the suspension and gearing etc, which don't change the PP.