Abstract: An amphibious toy vehicle powered by a water turbine and 4 drive wheels adapted to operate in a forward and backward direction on land and in a forward straight and circular direction in water. A single battery operated motor coupled to a transmission simultaneously drives both the 4 drive wheels and the water turbine. Power shafts from the transmission to the water turbine and the drive wheels are contained in isolated vertical risers extending above the water line so that the vehicle housing cavity containing the battery source, motor and transmission remain water-free without the use of seals.

Abstract: A self-propelled, four-wheeled vehicle is disclosed in which one of the rear wheels is motor driven, and the other rear wheel is arranged to be free-wheeling. Depending upon the selected drive torque transmitted to the single driven wheel, the vehicle either moves straight and level, or performs a wheel stand while moving circularly. A user can select the desired vehicle motion from a remote location.