What are dealer plates?

Question

What are dealer plates and what are they for? How do you get them? Do you get any special privileges?

Answer 1

there trade plates and basically there for mechanics of the garage the plates are assigned to it means if your car is untaxed uninsured and no mot or any of the one a mechanic from the garage can drive the car legally as he will be insured via the garage, also can be used for car sales saves taxing 100 cars so slap plates on and take potential buyer for test drive.

Answer 2

Dealer plates are assigned to car dealerships and they are put on the backs of cars when a potential buyer wants to test drive a vehicle.