Check out this 1970 Russian armored military vehicle, which runs on a pair of giant screws! Hit play or go to Link [YouTube] | More info at Fulgerica
I thought this sounded familiar: http://news.bbc.co.uk/1/hi/england/1916481.stm
I’m sure there was a more recent one as well on ice and someone made one on the UK show, Scrapheap Challenge.
http://jyw.tacorp.net/series5/tugboat/tug.html
In soviet russia, car screws you!