When faced with the proliferation of jetpacks among outdoor adventurers, Ski-Do realized their snowmobiles were to slow to compete. The solution- a jet engine! The Jet Sledge can travel at speeds up to 135 mph, or whenever the driver lets go of the handlebars or crashes into a tree or cracked ice.
Despite its speed, the Jet Sledge has functionality , too. It can carry some supplies and tools (or a collapsible ice-fishing rod) on racks next to the motor, for a full day's worth of adventure.
This, as well as the X-25 jetpack, came from fiddling around with various pieces to try to make jetpacks, then building scenes for them. These two are the ones that turned out the best.