What is the big fuss of many shaped custom number plates you see on cars? Well the answer to that is that these shaped custom number plates are designed for popular cars to accommodate the space manufacturers give on the tail gates (boot) of the cars that are designed to hold number plates. The space on certain cars is often a shape which the replacement number plates should fit into. There is no reason why normal standard sized plates can be fixed on, however, to give the complete look of the car, just like the manufacturers wanted, these shaped show plates give the finishing look to the car.
Models like Range Rover Sport, Aston Martin DB7, Rover 75, are part of the group of cars that are designed to hold specific shaped show number plates.