In this Act--
"demonstrator motor vehicle" means a motor vehicle--
(a) that has been used only for a purpose connected with its manufacture or sale or for the purpose of demonstrating the motor vehicle, or a motor vehicle of that kind, to a potential purchaser, and
(b) that has not been sold to a person other than a motor dealer, and
(c) that has been registered only in the name of a motor dealer, a person on behalf of a motor dealer or another person in anticipation of the sale of the motor vehicle to that person.