<P> The SBK Engineering Shuttle - Bike consists of 2 inflatable floats with straps that allow the carrying of a bicycle with passenger . The ensemble, when deflated, fits in a backpack for carrying by the cyclist . </P> <P> Several amphibious cycles have been created by engineering students as university projects . </P> <P> Gibbs Sports Amphibians Inc. introduced a motorized version of the amphibious cycle that resembles a jet ski on water and motorcycle on land . The model can reach up to 80 mph by land and 45 mph by water . </P> <P> Amongst the smallest non air - cushioned amphibious vehicles are amphibious ATVs (all - terrain vehicles). These saw significant popularity in North America during the 1960s and early 70s . Typically an amphibious ATV (AATV) is a small, lightweight, off - highway vehicle, constructed from an integral hard plastic or fibreglass bodytub, fitted with six (sometimes eight) driven wheels, with low pressure, balloon tires . With no suspension (other than what the tires offer) and no steering wheels, directional control is accomplished through skid - steering--just as on a tracked vehicle--either by braking the wheels on the side where you want to turn, or by applying more throttle to the wheels on the opposite side . Most contemporary designs use garden tractor type engines, that will provide roughly 25 mph (40 km / h) top speed on land . </P>

A deep truck made by wheels in mud