What type of vehicle is classified as a passenger car?

A passenger car is defined as a motor vehicle intended primarily for transporting passengers rather than cargo. Specifically, a passenger car is designed to carry a maximum of 10 passengers. This classification is important in understanding vehicle registration, insurance regulations, and adherence to various safety standards.

The correct answer clearly reflects this definition by specifying that it encompasses every motor vehicle that can carry 10 passengers or less. This includes traditional cars, sedans, SUVs, and some vans that are configured for passenger transport.

In the context of the other options, a vehicle designed for 12 passengers would exceed the typical passenger car classification, which is capped at 10. A vehicle designed for cargo transport may not be considered a passenger vehicle, as its primary function is not to carry people. Additionally, a heavy-duty truck is even further removed from the passenger car category since it is primarily built for transporting goods or cargo and not for carrying passengers. The distinction helps in regulations that govern various types of vehicles on the road.