Photo of amphicar which is the world's first successful amphibious car at a classic car lot in washington dc on 8/6/12-note the bow like front. The amphicar was produced from 1961-1968 with a total of 4000 being made. Two propellers in the back drive the car through the water and the front wheels are used for steering just like the rudder on a boat. The amphicar is a successful design with a top speed of 70 MPH on land and 7 knots in the water.