I'll leave this here---it's late and I cooked it up (Without a name, even) while travelling, so it's not anything remotely top-notch. It's also not really complete, but it's an idea to stew over, I suppose.
ME-WTV-61 'Mad Santa'
A simple, two-person snowmobile, built to travel on ice more than snow, such as the ice formed when one sprays ICE-Thrower delayed-action ICE onto the ocean. Everything is made as light as possible, and a lot of the structure is hollow. The snowmobile is shaped so that it will, if dropped in water, tend to float right-side up, allowing the user to drive away even if he should fall in water. The use of GOFAST allows for a smaller fuel tank and smaller engine, and the freed-up space and weight is filled with an ICE-Thrower, pointed forwards, with the tanks distributed throughout the snowmobile wherever there is space. A set of hardpoints allow for a few ski-riding soldiers to ride behind the snowmobile itself, should we have the opportunity to deploy it on land. Using the basic idea behind Forenian motorcycles, one sidecar can be attached to provide extra ICE, while another, filled with high explosives, can be rapidly detached in the field and left to detonate on a nice long, safe dangerously short timer.
Note: Develop form of ICE that can be used to create lots of actual snow on land, so we can have self-snowing snowmobiles on land, instead of just at sea. Oh, and we need a tow-able explosive device to allow our snowmobile soldiers to do damage to enemy warships. Hopefully, these things will be literally capable of snowmobiling out to enemy warships that are stuck in the ice from shore batteries or friendly warship salvos, and then, like a very late Santa Claus, leaving them a gift (Christmas tree not included, chimney not necessary, accept gifts from the Merethan Mad Santa at your own risk), and driving away.