I saw this on Ridergroups.com. This bike seems to be able to go just about anywhere, it floats and it dismantles into two holdalls and stores in the boot of a car.
Seems to be rather on the lines of the Rokon 2x2: http://www.rokon.com/ The Russian version looks a good deal smaller and lighter.
Rode a 2 wheel drive Yamaha YZ dirt bike several years ago, heavy, didn't want to turn, great uphill but the oddest feeling ever on 2 wheels