"Rental vehicle" shall mean a private passenger motor vehicle designed to transport fifteen or fewer passengers or a truck, trailer or semitrailer used in the transportation of property other than commercial freight, that is rented without a driver, is part of a fleet of five or more rental vehicles that are used for that purpose and owned or leased by the same person or entity and is rented for a period of twenty-nine or fewer consecutive days.
"Vehicle rental company" shall mean any business entity engaged in the business of renting motor vehicles in this Commonwealth.
16 P.S. § 2398