As used in this chapter:

(1) “Motorcycle” — the definition of motorcycle shall be the same as that found in § 101 of Title 21.

(2) “Motor vehicle” — the definition of motor vehicle shall be the same as that found in § 101 of Title 21.

(3) “Motor vehicle dealer” includes every person in the business of buying, selling or trading new or used motor vehicles, trailers, truck trailers or motorcycles.

(4) “Owner” — the definition of owner shall be the same as that found in § 101 of Title 21.

(5) “Purchase price” means the value or any other consideration given by the owner to the seller for a motor vehicle; where trade-ins or allowances are given in conjunction with the purchase of any motor vehicle, the purchase price shall be the gross purchase price less any trade-in or allowance given by the seller of the motor vehicle to the owner of the motor vehicle; except that where a motor vehicle having been bought and registered outside the State and not subject to the limitation of § 3002(a)(4) of this title is first registered and titled in this State, “purchase price” shall mean the fair market value as of the date of such titling and registration. If the owner made no trade-in in conjunction with the purchase of any motor vehicle or trailer but 60 days prior to or subsequent to the date on which a certificate of title was issued in Delaware on such vehicle such owner sold privately the previously owned vehicle, credit shall be given in the same amount on the document fee as if the owner had made a trade-in of such previously owned vehicle in connection with the purchase of another vehicle. Credit shall be given for only 1 motor vehicle or trailer per application. Application for such credit in event of a prior sale shall be made at the time application is made for title of the purchased vehicle. In the event of a subsequent sale, application for such credit shall be made not later than 15 calendar days after such sale in person or by registered mail to the Division of Motor Vehicles. Proof of prior ownership and the amount of sale shall be furnished at the time the owner claims credit pursuant to rules and regulations promulgated by the Division of Motor Vehicles.

(6) “Trailers” — the definition of trailers shall be the same as that found in § 101 of Title 21.

(7) “Truck tractor” — the definition of truck tractor shall be the same as that found in § 101 of Title 21.

(8) “Used vehicle” — the definition of used vehicle shall be the same as that found in § 101 of Title 21.

30 Del. C. 1953, § ?3001; 57 Del. Laws, c. 136, § ?17; 57 Del. Laws, c. 188, §§ ?28, 29; 58 Del. Laws, c. 296, § ?1; 58 Del. Laws, c. 442; 62 Del. Laws, c. 355, § ?1; 74 Del. Laws, c. 110, § ?135;