Hehe,
Yes, 'at a show, forgot to change them'...
I know a +8 owner who forgot to change them over when going for his MoT, they mentioned his plates as this was the third re-test, not so much because of the black/silver, but the one on the back said xxx 508x, the one on the front (the correct one!) said xxx 580x...
Number plate people do occasioanlly make mistakes!
Cheers,
