Which of the following is NOT classified as a motor vehicle?

A bicycle is classified as a non-motorized vehicle because it does not require an engine or motor for propulsion. Instead, it relies on human power, specifically pedaling by the rider. This distinction is important in traffic law, as regulations governing motor vehicles, like licensing, insurance, and registration, do not apply to bicycles.

On the other hand, buses, motorcycles, and cars are all equipped with engines or motors, making them motor vehicles. They are subject to specific traffic codes concerning operation, safety requirements, and regulations that do not pertain to non-motorized vehicles like bicycles. Understanding these classifications helps clarify responsibilities, rights, and safety protocols for different types of road users.