Ah, I see. If you need the specifics then, you'll find them in the definitions in section 4 of the NSW Motor Dealers Act 1974 as follows:
Ref: NSW Motor Dealers Act 1974 - Section 4 "Definitions"
demonstrator motor vehicle means a motor vehicle:
.... (a) that has not been sold to a person other than a dealer or wholesaler,
.... (b) that has been registered only in the name of any one or more of the following persons:
........ (i) any dealer or wholesaler or any person on behalf of any dealer or wholesaler,
........ (ii) any person in anticipation of the sale of the vehicle to that person, and
.... (c) that has not been used for any purpose, other than:
........ (i) a purpose in connection with its manufacture or sale, or
........ (ii) the purpose of demonstrating the motor vehicle to a potential buyer of that motor vehicle or a motor vehicle of the class to which that motor vehicle belongs.
second-hand motor vehicle includes a motor vehicle that has, at any time before being offered or displayed for sale, or sold, been registered, and includes a demonstrator motor vehicle.
Ref: NSW Motor Dealers Act 1974 - Section 4 "Definitions"