of four-wheeled, human-powered vehicles as to what this class of vehicles should be called, although quadracycle is the most commonly used term. Manufacturers who do refer to their products by class of vehicle call them:

*Quadracycle - 11 manufacturers
*Four-wheel bicycle - 7 manufacturers
*Quadricycle - 5 manufacturers
*Quadcycle - 3 manufacturers
*Pedal car - 2 manufacturers
*Quad - 2 manufacturers

In addition there are single manufacturers who call them Go-kart, Car, Car-Bike, Ecological car, Human

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