I wouldnt do the personalized number plate thing, also crossed my mind but then everyone is gonna be ........ I saw you last week at the Shoprite (this will be semi okish as you wouldnt mind someone say that), problems is when you visit a friend and suddenly everyone knows where you were the whole weekend. Privacy out the door.
I rather have someone remember my car as a black bmw instead of BMW330i has been at the mall at 14:00, of I saw him later the day at the post office around 17:00, and he was at SPUR when I saw him around 20:00, only left around 22:00 ......Not my cup of tea