Built out of an old milk tanker, the Orbiter was designed to circumnavigate the globe on land and water, which is good for when you're on the move and forced to deal with the suddenly changing seasons that the nuclear fallout will likely bring. And like all good survival vehicles, it comes complete with a kitchen and porta-potti.
Link -via the Presurfer
http://www.petersonmoversllc.com/images/PastProjects/Amherst2HouseMove.jpg
I used to ride past it where it was parked against the hillside in front of Jeffries Automotive Styling on the Cahuenga Pass for about 20 years!
Kinda sad watching it disintegrate... until they finally restored it before selling it off.
http://www.snowcrest.net/fox/landmaster/
http://en.wikipedia.org/wiki/Landmaster