The most money ever paid for a car license plate is for the number 1 in the United Arab Emirates.

Businessman Said Abdul Ghafour Khouri paid $14.3m in an auction for the 1.

Vanity plates are really hot in the Persian gulf nations. Previously the number 5 was the most expensive license plate with $6.8m.
The money from the license plate auctions go to charity.
More details on ABC News. Photo shows head of Emirates Auction, Abdulla al Mannaie with the precious no. 1.