What does the term "hybrid vehicle" refer to?

The term "hybrid vehicle" specifically refers to a vehicle that utilizes a combination of an internal combustion engine and an electric motor to power the vehicle. This dual-source powertrain allows hybrids to achieve better fuel efficiency and reduced emissions compared to traditional vehicles powered only by internal combustion engines. The electric motor can assist the engine during acceleration and can also enable the vehicle to operate solely on electric power at low speeds, thus optimizing fuel consumption.

This definition distinguishes hybrid vehicles from other types. For instance, vehicles powered solely by electricity fall under the category of electric vehicles and do not include a gasoline or diesel engine, while fully autonomous vehicles refer to automation technology rather than a specific power source. Vehicles that run on biofuels are a different class, focusing on alternative fuel types but not necessarily combining them with electric propulsion systems. Hence, the distinction of hybrid vehicles lies in their specific combination of power sources.