There are many advantages of having private number plates which is why so many people choose to get them nowadays. Your very own registration number is a great way of making your car more unique to you. Maybe you want it to say your name, part of your address, age or anything else that means something to you. It is unlikely that anyone else will have a similar registration so you can be assured that yours will be completely unique.A numeric or alphanumeric code that uniquely identifies the vehicle is called the registration identifier.In one speech number plate is the identity of a motor vehicle.