Cheers to KKB who originally explained this to me on this forum
# plateFormat:
Defines how the number plates on your world will look.
You can specify any combination of:
Constant letters and/or numbers (will be used on every numberplate)
Random letters and/or numbers (characters used are picked at random by the OFP engine)
$ -> Random letter
#-> Random number
Hypens "-" (used to separate letters numbers etc. if desired)
# plateLetters:
Defines which letters can be used when OFP selects a random letter
Examples
Everon:
plateFormat="ER$ ## - ##";
plateLetters="ABCDEFHIKLMOPRSTVXYZ";
Malden:
plateFormat="ML$ - #####";
plateLetters="ABCDEGHIKLMNOPRSTVXZ";
So on Everon every number plate would start with ER, then have a random letter (from plateLetters), then 2 random numbers, then a hypen, then another two random numbers
On Malden, each number plate would have ML, followed by a random letter (from plateLetters), a hypen and then 5 random numbers.
The best results are when 9 characters are used overall, although more can be used, they don't fit onto the actual numberplate ingame
It should also be possible to use any characters you want in your number plates, such as (,),@,<,> etc.. -> although i'm not sure why you'd want too ;D
Marksman