The one you are referring to is different than the one I saw. The one I saw was a 2 track SnoKitten. It was painted blue & white. Quite interesting looking. I'm not sure what the configuration of the back was, but it was owned by a towing company or auto service company. I looked around the internet and can't find it now, so it may have been sold, but I know it was for sale for quite a while, and I think it was located Idaho.
If you happen to be in the area, I'd be interested in seeing the photos of the one you know of, but I'm not interested in buying it.