How many passengers is a passenger vehicle designed to carry?

A passenger vehicle is defined in Pennsylvania as one that is designed to carry a maximum of 15 passengers, including the driver. This classification aligns with federal and state regulations, which specify that vehicles designed to transport more than 15 people fall under different categories and face different regulations and inspection requirements. Thus, the option stating that a passenger vehicle is designed to carry 15 or fewer passengers is the correct answer, as it accurately reflects the legal and practical definition of a passenger vehicle. The other options do not adhere to this standard, as they include numbers that exceed the permissible limit for a standard passenger vehicle under current guidelines.