A personalised registration can be a great way to say something about you.
Although some number plates are more expensive than others.
Here are the top-five number plates in the UK, followed by the top-five number plates in the world.
The Most Expensive Number Plates in the UK
Buyer: Afzal Kahn
Owner of car styling company Project Kahn, Mr Kahn has sported his number plate on his Mercedes-McClaren SLR and Bugatti Veyron.11
Bought at Bonhams auction, Chichester, the bidder was reported to have said it would adorn their "old red Skoda."
Buyer: Nabil Bishara
Property developer Nabil Bishara bought this registration as a surprise for his wife's Bentley.
Buyer: Mike McCoomb
A gift for his ten-year-old-son, Mr McCoomb bought this number plate following the £40 million sale of his mobile phone company.
Plate: VIP 1
Buyer: Roman Abramovich
Chelsea owner and Russian oil oligarch Abramovich chose to put his VIP 1 number plate on his Rolls-Royce Corniche IV.
The Most Expensive Number Plates in the World
Not surprisingly, all of the world's top-five most expensive number plates were purchased in Abu Dhabi.
Saeed Khouri had a very simple explanation for why he spent over £7 million on a number plate: I bought it because it's the best number.
After breaking the world record price for a number plate (at the time) Talal Khouri said that the number 5 meant nothing to him.
The number 7 plate was sold at auction, with a video of the event posted on YouTube.
Sold as part of an auction from May 2008, in which 100 number plates went under the hammer in front of 450 people.
All of the top 5 number plate sales had the proceeds donated to charity.
To find a great number plate of your own, just contact the experts at National Numbers on 01642 363738.