aaaah, let me throw this out there. Until recently I was running a ridiculously small 6x4 plate due to the fact that my WB tailtidy and akras conspired to make a teeny tiny gap for said number plate. I have consequently taken a scrollsaw to my old legal plate and trimmed of all the excess around the digits. This makes a plate around 7x5 but with the correct size letters with the correct size spacing in between them... I have not been bothered yet.