Someone made a De Lorean hovercraft, and took it for a spin in the San Francisco Bay during a baseball game. It’s… it’s pretty awesome. Even the game’s broadcasters seem reluctant to have to call the game when a faux McFly is tooling around on the water. From the hovercraft’s maker original Kickstarter for the project:
When it is done, the craft will be able to hover on anything flat (asphalt, sand, water, etc), but it will be mostly driven on the San Francisco Bay. The hovercraft is registered with the DMV in California as a boat (it is not street legal). The top speed should be around 45 mph, which is pretty impressive for a vehicle with no breakes (it’s not touching the ground, remember!). If you have never seen a hovercraft, the basic concept is that a fan pushes air underneath the middle of the craft and a “skirt” (basically a flexible inner-tube around the perimeter of the craft) traps that high-pressure air under the craft, which lifts it off the ground.