Interesting how the police attitude to this has changed over the years. Perhaps 20 or more years ago a local lad (diehard Rovers fan) had 13RFC on an old banger and was regularly stopped and prosecuted by Blackburn police. He was often reported in the local evening paper. These days it seems unreadable number plates, or at least ones you need to think about, are quite acceptable.
My favourite is the huge guy in a BMW or Merc who can be seen driving on the M61. Tanned, open shirt, bling jewellery etc. The number plate is B1CEP which has to show a great sense of humour.