California's MM plate is the most expensive license plate in the world. The plate with two same letters is rare and this is what makes it expensive. There are only 35 such license plates.
The F1 number plate is owned by Afzal Kahn, an automotive designer and entrepreneur. The plate currently graces a Bugatti Veyron and Kahn bought the plate in 2008 from the Essex County Council.
The most expensive license plate in New York is actually 'New York.' In the 1970s, a family got the only street-legal 'New York' plate in existence. This number plate is carried on a decades-old Volvo.
This number plate was recently auctioned at a charity by its owner Saeed Abdul Ghaffar Khouri for 52.2 million dirhams ($14.2 million).
Dubai-based property dealer, Balvinder Sahni owns the D5 number plate Roll Royces. The reason behind buying this plate was that D is 4th letter of the English alphabet, so 4+5=9, which is another license plate Sahni owns.
The license plate '1' was bought by property mogul, Saeed Abdul Ghaffar Khouri in 2008. When asked why, he said, “I bought it because it’s the best number.”
This number plate is also owned by Balvinder Sahni. In October 2016, he paid $4.6 million at a government auction for plate No 5. He said that since the money will go to the government, he hopes it will be used to improve the city’s infrastructure.