As used in this chapter, the following terms shall have the meanings indicated:
Includes all vehicles propelled otherwise than by muscular power, excepting such vehicles as run only upon rails or tracks.
Any unregistered motor vehicle which is unfit for reconditioning for use for highway transportation, or used parts of any motor vehicle or vehicles.
A newly manufactured motor vehicle.
Includes absolute or voluntary sales and purchases, agreements to sell and purchase or any form of security agreement whereby any motor vehicle is sold and purchased or agreed to be sold and purchased, or the giving or transferring possession thereof to any person for permanent use; continued possession for 60 days or more is to be construed as permanent use.
A motor vehicle so used as to become what is commonly known as "secondhand" within the ordinary meaning thereof, and includes every motor vehicle other than a new motor vehicle.