I have no idea.
It appears to be a snowplow. It's sitting near the top of Etna and is powered by not one but two four cylinder turbo diesel engines, mounted side by side and both cooled by a single radiator the size of a dinner table. I didn't find any ID tags on it that would indicate just what the hell it actually is, who it's made by, etc. Interestingly enough, not only did it have two engines, it had two sets of commands in the cabin, one facing forward, one backwards.