Winter Ride?

Although, at the time of writing, the northern sub-office is bathing in bright Autumnal sunshine, we all know that the weather's going to be taking a turn for the worse any day now, and many people have already taken their bike off the road for the next bout of over-winter tinkering and modifying. Those that continue to ride invariably use a dull 'winer hack' (summat tedious like a CB125 or GS500), but here's an idea for those that want something slightly more exciting as a winter plaything - after all, we don't get much snow in the UK so a snowmobile is out of the question...