Amazon.com: Lego Technic 8272 Snow Mobile (331pcs) : Toys & Games
LEGO Technic 8272 - Snowmobile - DECOTOYS
The snowmobile has steering and suspension, both in the front and back. This is an updated version of one of 15 models that I am submitting to the LEGO Ideas webpage. There is a direct link underneath the pictures if you want to vote for it as a sales product.