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/ and http://www.roadtransport.com/blogs/big-lorry-blog/2010/07/more-tucker-sno-cat-websites-d.html