That thing is beyond awesome. I'd take that over a snowmobile any day. However, I think those Mattracks cost about as much as the truck!
Dude those things are a nightmare. They are the ones from his original Subaru with a totally different lug pattern. The Trax were offset differently, nothing lined up and they kept walking off the wheel. After thousands of dollars in overnighting really heavy parts they ended up working great. When you drive that thing it feels like it will go through anything.
The crazy thing is the trax are so dam heavy they need 3 limiting straps per corner and still are stretching a few inches.