Is that legal? I mean, a Perl license means it can be used under either "ARTISTIC" or "GPL", but as far as I know the DMV wants you to have one set of tags for vehicle...

(Me, I'd put an "MIT" license on my car, except that it'd sound pretentious, and I'm not sure I want just anyone taking it out for a drive anyway. Plus, heh, I don't own a car.)