[Corekt]

I don't know why you want to do that, but you can "force" assign a specific id X for a vehicle by creating the first X - 1 vehicles under OnGameModeInit and creating the vehicle with the id you want, then destroy those previous vehicles. That might not be the answer you're looking for.


EDIT: If you're doing this to keep track of a vehicle's ID, it's better to just assign the vehicle id to a variable.