I’ve never been into the private plate thing. If I was, then I wouldn’t buy one which linked the plate to a specific car such as a GTI; my next car might not be a GTI.
I seem to remember some years ago there was a member on the forum with the registration plate GT11 ANS on their Candy White mk6 GTI Golf; their first name was Ian (so GTI IAN’S). I can’t remember if they had illegally spaced letters / numbers on their plate though (I also dislike wrongly spaced registration plates).