two track snowmobile

I saw a two track snowmobile with tracks about eight feet long, and about two feet high, about four feet apart, looked like it had a cabin in the middle similar to the size of a small cessna plane.... maybe a two seater.... trying to find out what it was..... looks like it only weighed maybe 1500 pounds, not some big heavy commercial tracked snow vehicle like the ski resorts use..... cabin was white.... no markings that I saw but we had a 40 mph quick peak that's all.....
does anybody know what this could have been????

two track snowmobile