and I'm just talking about simple to implement stuff like making the mouse a useable part of the control system while ingame, ie to freelook around the vehicle, especially when trying to see where enemies have gone past you, and then you get into trying to make the best maneuver to line up another attack, made incredibly annoying because of having to drive with that awful built in camera and the slow acceleration.
I think all cars should come with a default ability to power thrust as a staple for the poor acceleration all cars have where it goes on cooldown after use.
mousewheel selecting powerups, mouse buttons to use said powerups..
carmodageddon ? steam workshop? let us make our own maps?