Kris Boyson is risking a fine of up to £1,000 because of a feature on his posh car.
Katie Price 's boyfriend boasted about his "toys" as he posed for a picture with his shiny black Mercedes and an off-road buggy.
But the license plate on his car could end up costing him money, Mirror Online has learned.
It's affixed with a personalised license plate that reads "K B07SON".
The top of the number seven is curved, meaning it resembles a 'Y', which would perfectly spell out his first initial and surname.
The plate does not meet the British Standard for number plates, and displaying a registration mark on a vehicle which does not comply with the legal requirements is an offence under Section 42 of the Vehicle Excise and Registration Act 1994.
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Laws set out by the government mean that someone in breach of this act can face a fine of up to £1,000.
The Driver & Vehicle Licensing Agency (DVLA) offers guidelines on vehicle registration numbers and number plates.
Number plates can only be made up by a registered supplier and must meet the British Standard.
Guidance on the DVLA website states: "The British Standard sets out the characteristics of the number plate. This includes visibility, strength and reflectivity.
"To meet the British Standard, each number plate must be permanently and legibly marked with the British Standard number (currently BS AU 145d), name, trademark or other way of identifying the manufacturer or supplier, name and postcode of the supplying outlet."
There is also specification on the design of number plates.
It states: "Vehicles manufactured after 1 January 1973 must display number plates: made of a reflective material, with a white background at the front of the vehicle and a yellow background at the back of the vehicle, with black letters and numbers.
"On 1 September 2001, the new regulations introduced a standard font (style of lettering) for number plates, making them easier to be read. This change ended the use of italics and other styles of lettering that are difficult to read."
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There are also a number of rules regarding how tall and wide the font should be, the thickness of the black font and how big the spacing between each character should be, as well as the spacing between the age identifier and other letters.
Enforcement of the law in regard to number plate offences is a matter for the police.
Mirror Online has contacted Kris' representatives for comment.
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