It always makes me mad when i’m upgrading and cannot reach the PI class limit. This happens often with Electric Cars. Also you can’t tweak around that much with the power upgrades, because there is only one or two.
Maybe lets have some extra power upgrades, more steps or a slider to reduce the power and reach the PI class limit.
Similar posts with options like ballast are already suggested, and i agree that they would make a positive difference. But for electric cars its very important. No one drives around in MP with a car 8 points under PI top level of the class.