A new tracked vehicle has been developed for studying the influence of different vehicle parameters on mobility in soft terrain, particularly on muskegs and in deep snow. The vehicle is skid steered with a hydrostatic transmission, driven by a five-cylinder diesel engine. The vehicle makes it possible to vary several design parameters in the field, and it is equipped with transducers to measure the vehicle trust, track motion resistance, belly resistance, drawbar pull, the trim angle of the vehicle and the slip between the tracks and snow.