What is a key characteristic of a commercial vehicle?

A key characteristic of a commercial vehicle is that it is primarily used for transporting goods or passengers for compensation. This means that these vehicles are employed in business operations, whether to carry freight for shipping companies or to provide transportation services like taxis and buses. The focus on compensation indicates that the vehicle operates within a commercial context, which includes adhering to industry regulations and standards that govern safety, maintenance, and driver qualifications.

In contrast, other characteristics mentioned are not defining traits of commercial vehicles. For instance, a vehicle that is used solely for personal transportation does not qualify as commercial because it lacks the aspect of operating for profit. Speedy travel is not a requirement for commercial vehicles; their primary function is related to service delivery rather than speed. Furthermore, a maximum weight limit of 3,000 kg is not an exclusive identifier of a commercial vehicle, as weight classifications can vary widely based on the type of vehicle and its use, including light trucks and trailers that may exceed this limit.

By understanding the primary function of commercial vehicles, it becomes clear why the correct answer encapsulates the essence of their purpose in the transportation industry.