Meet the J5 mobility platform: a rugged robot with a max speed of 18 km/h and max incline of 45 degrees. It has 24″ tires and can operate in -20 to 40° C. It is powerful enough to haul a snowboarder. J5 features a magnetic braking system and can handle inclines up to 45 degrees.
This video shows the J5 robot in action. More info is available here.