The following words and phrases when used in this act shall have the meanings given to them in this section unless the context clearly indicates otherwise:

“Dealer” or “motor vehicle dealer.” A person in the business of buying, selling, leasing or exchanging vehicles.

“Department.” The Department of Transportation of the Commonwealth.

“Manufacturer.” Any person engaged in the business of constructing or assembling new and unused motor vehicles or engaged in the business of importing new and unused motor vehicles into the United States for the purpose of selling or distributing new and unused motor vehicles to motor vehicle dealers in this Commonwealth.

“Manufacturer's express warranty” or “warranty.” The written warranty of the manufacturer of a new automobile of its condition and fitness for use, including any terms or conditions precedent to the enforcement of obligations under the warranty.

“New motor vehicle.” Any new and unused self-propelled, motorized conveyance driven upon public roads, streets or highways which is designed to transport not more than 15 persons, which was purchased or leased and is registered in the Commonwealth or purchased or leased elsewhere and registered for the first time in the Commonwealth and is used, leased or bought for use primarily for personal, family or household purposes, including a vehicle used by a manufacturer or dealer as a demonstrator or dealer car prior to its sale. The term does not include motorcycles, motor homes or off-road vehicles.

“Nonconformity.” A defect or condition which substantially impairs the use, value or safety of a new motor vehicle and does not conform to the manufacturer's express warranty.

“Purchaser.” A person, or his successors or assigns, who has obtained possession or ownership of a new motor vehicle by lease, transfer or purchase or who has entered into an agreement or contract for the lease or purchase of a new motor vehicle which is used, leased or bought for use primarily for personal, family or household purposes.