Custom plates or custom number plates to give them thier full name are often terms used to describe vanity plates. Albeit vanity plates is an americanism used to describe private number plates. Show plates are a different animal altogether, this is a term to describe numer plates used for show or off road purposes. I guess show plates were originally used things like car showrooms often with the model of the car on them i.e. Astra for a Vauxhall Astra.
All number plates are custom made and therefore cauld legitametely be termed custom plates. A vehicle registration number is a unique combination used to identify vehicles and their owners. The vehicle registration number has to be displayed on the number plates. By vertue that the registration numbers are unique and therfeore the plates have to be custome made. In the UK there are stringent rules determining the display of vehicle registration numbers.
Platesbypost deliver custom plates throughout the UK providing daily deliveries to all areas. Our online plate builder allows you to build custom plates to Uk legal number plates standards.