1. Built from unknown parts, unknown ages, or insurance write-offs.
2. Stolen/recovered vehicles.
3. Ex-military vehicles (Including Ex-Army, Ex-Navy & Ex-RAF Land Rovers and other forces vehicles.
4. Imported vehicles.
Q Plate is a vehicle registration mark that starts with a 'Q', indicating that the vehicle was either not originally registered in the UK and proof of age was unavailable at registration; or that it is a vehicle that has been built using a significant proportion of used parts.
Kit cars usually have a Q registration. Q plates can be used to disguise stolen or 'rung' vehicles, and when it comes to a bike check, you should be especially cautious of motorcycles which bear a Q plate.