Abstract: A propulsion system for a vehicle having a longitudinal axis comprising a single driving source having a driving shaft; a pair of driven elements, each of the pair of driven elements being spaced from and on opposite sides of the longitudinal axis; a first differential device having an input shaft coupled to the driving shaft and two output shafts; a second differential device having an output shaft coupled to one of the pair of driven elements, a first input shaft coupled to one of the two output shafts of the first differential device and a second input shaft coupled to the driving shaft; a third differential device having an output shaft coupled to the other of the pair of driven elements, a first input shaft coupled to the other of the two output shafts of the first differential device and a second input shaft coupled to the driving shaft; and a control arrangement coupled to the driving source, the first input shaft and the output shaft of the second differential device and the first input shaft and the