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A quadricycle is a four-wheeled motor vehicle belonging to a specialised vehicle category distinct from an ordinary passenger car.

A light quadricycle is a relatively low-powered four-wheel motor vehicle with a restricted maximum design speed. In European vehicle classification, light quadricycles belong to category L6e.

A heavier or more powerful quadricycle that does not qualify as a light quadricycle can fall within category L7e under European vehicle-classification rules.

No. Although some enclosed quadricycles resemble very small cars, they belong to a different technical and legal vehicle category and can have different licence, power, mass and road-access rules.

Not necessarily. The quadricycle category includes several types of four-wheel motor vehicles. Some are open recreational quads, while others are enclosed road-going microcars designed for passengers or goods.

Yes. Quadricycles can use electric motors, combustion engines or other approved propulsion systems.

Usually yes, but the required licence depends on whether the vehicle is classified as a light or heavier quadricycle and on the country's licensing system.

Road-going quadricycles commonly require registration and a registration plate. Exact requirements vary between countries.

This depends on the vehicle design and local law. Open quadricycles may require helmets, while enclosed vehicles with a passenger compartment and restraint systems can be subject to seat-belt rules instead.

Yes, when it is designed and approved to do so. The number of passengers may not exceed the vehicle's approved seating capacity.

This depends on its vehicle category, construction speed and local motorway-access rules. Low-speed light quadricycles are normally unsuitable for motorway traffic.

This depends on its legal classification. Some light quadricycles are treated similarly to mopeds, while heavier quadricycles may follow many of the ordinary rules applying to cars.