Okay. This is a much faster version of my spring engine snowmobile.
It goes more than twice as fast.
The catch is the track is fake, and its driven with wheels powered by the engine.
My original scene wasn't fast enough according to Kilinich, and it was his idea for me to cheat ;D
Some issues with this snowmobile is, when you let off the gas in mid air, the snowmobile flips backwards. Its from the force of the engine, and there is really nothing I can do to fix it, other than adding a ton of weight to the front, and that will just slow it down.
That's about all you need to know.
Enjoy!