amphibious cars

Amphibious cars are vehicles designed to operate on both land and water.

They drive on roads like conventional automobiles but can enter water and propel themselves across lakes, rivers, or calm seas.

Most use the same engine for both modes, switching to a propeller or jet drive in water.

The concept has attracted hobbyists and military designers since the early twentieth century, though amphibious cars remain rare curiosities: He drove his amphibious car straight off the boat ramp and into the bay.