I agree with your not worth the hassle point but not about them being illegal. They can be made legal:
http://trafficlawadv...mberplates.html
http://www.number1pl...-number-plates/
I still wouldnt fit them regardless mind!
Yes you're right I didn't realise that you can get them with reflective backgrounds nowadays as Jetpilot corrected me just after my post.
I agree with you as I wouldn't fit them on a Zed, ...tbh they're more of a German scene fad like on the BM's, VW's etc although I won't be getting them on my Audi. Just not worth the hassle.