Quad bikes appeared in the 80s. They are all-terrain vehicles with four wheels fitted with engines ranging from 50 to 500 cc. The quad is a hybrid between a motorbike and a car, and only qualified models can be used on roads open to traffic.
Above all it is necessary that the quad is approved, then you must wear a helmet (also approved) and of course you must be properly insured.
Finally, do not forget your driver's license!