What Q plate means for you
A Q plate is given when a vehicle's age or identity can't be confirmed, so the number on the car doesn't prove what it is. It's a reason to check carefully before you pay. Compare the VIN on the windscreen, door pillar and V5C, and make sure the V5C's name and address match the seller's ID.
Look at the MOT history for mileage drops between tests, the classic sign of clocking. A Full Check also covers finance, write-offs and plate changes.