Car Plates
See above link, we do indeed have the Legislation here.
I actually remember an article in, I think, the Examiner, some time back where someone was fined for having italic plates.
As Heinbloed indicated, you mightn't get the car off the ferry if you want to take it on holidays.
I, for one, would welcome stricter enforcement of this legislation. It can be difficult to decipher many of the car plates seen on the roads, with obvious consequences following a road incident.