If you love off-road challenges, the Russian-built Wamah Avtoros Shaman 8×8 nine-passenger amphibious all-terrain vehicle (ATV) is ready to float, roll, and climb. There is no driving on U.S. streets.

Need to haul a 1,300lbs bull moose off the Alaskan tundra? You’re going to need an Argo. The world’s only eight-wheel-drive, amphibious ATV can literally go anywhere. What’re they supposed to do?

When we initially saw the Sherp ATV rolling its way around the Internet, our first thought was that it must be the work of a designer, not a real vehicle. The compact body tucked between ginormous off ...