It's no Ferrari, but an original 1956 Aerocar -- the first flying car to be deemed street-legal in the U.S.-- is listed for sale on eBay. And it's only $3.5m (£2.4m) -- if you use 'buy it now'.
It's presumably in good shape, with the auction stating that its engine was inspected a couple of years ago, but if you plan on flying this car anywhere we'd recommend a tune-up first -- the engine hasn't been officially inspected since 1976.
Of course, for that money you could buy a top-of-the-line personal jet as well as a rare super car, but that wouldn't be nearly as neat as this thing. We want it.