Code Guardian is a teriffic short film — done with computer generated graphics — about a giant Nazi robot’s attack on an Allied port.
Superscience
German NK-101 Minenraumer rolling mine exploder
The Hemmings Auto Blogs have a post on a wonderful Wierd World War II vehicle: the Minenraumer, which apparently is kept in a Russian museum.
Raum Krieg
Raum Krieg is set in an alternate history where Germany and the Allies battle it out in the skies with UFO Technology.