Sorry for the bump, but recently been looking into an issue with an addon vehicle missing it's mod options in a frameworks vehicle modification script (QB-Core and QB-Customs)

I've been told by one vehicle developer that sells addon vehicles that the number has to be 4 digits, however talking to another one that has been around a lot longer, it doesn't matter what you put there, could be 4444, could be 334984893728943 as long as the number is unique and doesn't conflict with another vehicle?