Smaller size and a Spyder could be a snowmobile

[Rachel]

Saw this and thought of how many people tell me I'm driving a snowmobile. One of these and a couple skis equals instant snowmobile.
http://m.wimp.com/turnssnowmobile/

[CyncySpyder]

Put a set of Skis under the front wheels and one of those thingies under the rear wheel
GAME ON
C'mon, Who's gonna be the 1st to try this
I wanna see it

[Bob Denman]

There's a couple of companies making track kits, and BRP is one of them!
A lot of them are marketed toward 4wd ATV owners. I've got a buddy in Utah who's thrown a kit under his "Outtie-8", and he keeps logging miles through the ugiest Winters with it.

[fastfraser]

Man that was awesome .

[Motavar]

My friend redroc has a dirt-bike to snowmobile conversion kit, pretty sweet.