Water-faring cars are nothing new. Water-faring bikes, however, are. The Biski Amphibious Motorcycle functions as a capable-but-plump two-wheeler on the pavement, and as a speedy jetski on the water. It's powered by a two-cylinder gas engine producing 55hp, good for max speeds of 80 mph on land and 37 on water. Speaking of which, it uses a custom dual-jet system for on-water propulsion, has both road and marine navigation lighting, and converts between its two modes in less than 10 seconds.