sorry it's in Russian...but neat as hell http://www.youtube.com/watch?v=MtacFlDUjRM&feature=player_embedded
It does get the gears turning inside the old noggin...if it was hydraulic drive with a pump off the driveshaft swapping over would be pretty simple...it's a cool idea wasted on a Lada Niva
MOAR!!! dig the crazy russian jazz theme music http://www.youtube.com/watch?v=XCZkWeO4Dso&feature=player_embedded#at=138
heh.. solid rear axle, adapter plates to chain and sprocket that works even when the car is bouncing on the contraption.. either well made or pure luck lol!
more fun from Russian youtube enjoy...from the insane to the OMG that's brilliant not sure if this is insane or brilliant http://www.youtube.com/watch?v=yUZdlvGYolw&list=PLQEEzpyJoVNHkYlI9Xa2_aJ-vTDvGRldj brilliant http://www.youtube.com/watch?v=2mjK6OgBHXk more of the last one http://www.youtube.com/watch?v=XAbWzRrZ1Yg just kinda cool http://www.minitrucktalk.com/newreply.php?do=postreply&t=6834 the Russians love their motorized innertubes http://www.youtube.com/watch?v=YSkqa3TNlvw&list=PLQEEzpyJoVNHkYlI9Xa2_aJ-vTDvGRldj Finland has some cool junk too http://www.youtube.com/watch?v=7gMmDVAhOkg&list=PLQEEzpyJoVNHkYlI9Xa2_aJ-vTDvGRldj