Apparently if you buy a ferrari from the dealership, they come with sticker plates; They agree to pay for any fines that you get for having one instead of a proper plate.
Apparently a few years ago, the cops caught on to a cruise that the NZ ferrari club were having, and set up a road block. Gave out a crap load of fines for illegal plates on the front.
(disclaimer: Elements of story may or may not be urban legends. but if I recall, it came from a legitimate source.... Fivebob, if anyone is a TS regular)