Vehicle Repairing

i reckon you should make it so you can repair the cars around the map but at the cost of a lot of materials (50 metal, 5 repair kits, and 1 car battery emp) but make them a temporary vehicle (leave = damaged again)

Well why not. Then you get blasted rapidly apart by a tank or hordes of hunters attracted to the noise of the car engine.

That sounds indeed interesting.
Like you repair the car, short circuit it to start it, drive, but if you stop it turns off and needs to get repaired and short circuited again.

So if you leave it to refuel it, it’s the same.