We've all seen one: A vehicle on the trails that you never expected to be there. Something so different you instantly rush for your mobile phone to get a shot of it.

Maybe it's a surprisingly capable AMC Eagle climbing slickrock at Moab (as evidenced in the video below); a lifted front-drive Volkswagen on the trail; maybe a Mazda RX-7 on a Jeep chassis at the dunes. Heck, maybe it's even the above-pictured six-wheeled Bronco we saw at Easter Jeep Safari.

So what's the most unusual off-road vehicle you've seem out wheeling?