did a quick search and didn't find this...

Many of the leagues use the custom number plate idea...most I have see is in the same place soooo...how about 2 car paint templates one with the number plate in a predetermined placed and one without the number plate. Then coded into the game in the player name/options section another field "car number". This then displays the car number variable in the predetermined place where the number plate is...voila, no more repainting each time a number has to change

It has been suggested before.

+1 to glow in the dark ones when we get night.

As long as there is a way to disable it for skins which differ from the normal number plate ways, +1

what maggot said.

+1