Ok, so I guess the only way is to manually correct rotation on every tick, and limit it more and more the faster the car is going. Do you think this could be doable??

Cars have all the variables from vehicle, since they inherit from it, but cars have some variables of their own that vehicles don't, like rotation speed. When I get player.vehicle I can modify all vehicle variables, but not car variables.

I can't figure out how to change that in a function inside control.lua. The player.vehicle reference doesn't have the car's property (rotation speed) and I don't know how to get a reference to the car, and not it's parent vehicle.
Any help would be appreciated.