Water cars have been around at least the 60's.
http://www.retronaut.com/2013/05/pre...mphibious-car/
Flying car was featured in Bob Cummings' 1961 TV comedy
http://www.pilotfriend.com/aircraft%...ce/aerocar.htm
"The ubiquitous Glenn Curtiss produced a design for a three-seat flying car in time for the Pan-American Aeronautic Exposition in New York in February 1917."
Buy a flying car
http://www.aerocarforsale.com/