I'd like to see vehicles and some other objects get damaged incrementally, and can be fixed with an item. Maybe, smoke could come out when the vehicle has been damaged to a certain extent, and ramming the vehicle into the wall gives it damage.
How about having garages that fix or mod the vehicle, with certain features like nitro and hydraulics? That would make for some weird outcomes of certain things. Maybe we can have a fuel mod with fuel limits, and certain places that we can fill up the tank.
(The last idea happened to be from GTA: SA, when it used to be on my computer)
