400 O Number Plate
The known history of 400O, bringing together documented vehicle assignments, auction sales, advertisements, photographs and other evidence.
Last checked by our plate checker: 23 Sept 2026, 18:05
400 O (400O) — Number Plate History & Timeline
Also written as 400O. History, past vehicles, DVLA records, auction sales, advert appearances, spotted photos, pictures and images for number plate 400 O.
On Vehicle
Currently on a 2014 White Porsche 911
Sold
This number plate was issued at a DVLA auction in February 2017.
It sold for a hammer price of £30,500 and a total of £39,528 including fees and taxes.
Accounting for inflation, that's £54,093 in today's money.
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What is 400 O worth?
The value of 400 O is influenced by its dateless format, the desirability of the letter O and comparable sales.
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