Polar explorers

above from http://lecontainer.blogspot.com/

Above image via: http://www.greyhandgang.com/

Above images http://www.jalopyjournal.com/forum/showthread.php?t=229248&showall=1 which stangely, I posted about years ago... and that thread on the Jalopy Journal is still being added to

Above: the 1939 Sno Cruiser

For more on the Tucker Sno-Cats: http://justacarguy.blogspot.com/2009/07/tucker-snow-cat-pioneering-vehicle-of.html

Above: the Terrabus

For more see: http://www.provehicles.co.uk/top-13-polar-super-vehicles-from-antarctic/

Tucker Snow Cat, the pioneering vehicle of the Trans Antarctic Expedition

Not exactly the same model as the one in the publicity shot below

For a you tube video of some in action in the Antarctic, crossing and getting stuck in the crevass... and how they got out of it, see: http://justacarguy.blogspot.com/2008/12/trans-antarctic-expedition-getting.html