World’s “fastest amphibious car” for sale to insane shipbuilding racer

While flying cars have never been quite so hot, the land-sea vehicle combo has been a soggy bog of ideas for decades, mainly because amphibious cars suffer from the houseboat paradox -- not a good house, not a good boat -- and expensive enough that they're limited to people who can afford proper cars and traditional watercraft. All of which was no barrier to the creator of Project Sea Lion, a five-year project to build a 45-mph boat that can also go 125 mph on land. Now it can be yours for just $259,500.