The Rename function allows a vehicle owner to add a name to the vehicle. This will be appended to the actual vehicle object name, even if it is no-modify.

If the name of the vehicle is Monster Truck 2000, and the owner uses Rename and inputs "custom", then the vehicle name will now be set to Monster Truck 2000: custom. If they rename it again, whatever they input will replace the "custom", and the Monster Truck 2000 portion will remain.