A powersplit transmission having a compact configuration that readily can be incorporated in a vehicle, particularly within the vehicle frame, includes (a) a mechanical transmission having a rotatable input shaft, a rotatable output shaft, and multiple gears for mechanically transmitting power between the input shaft and the output shaft; and (b) a hydraulic transmission containing a fluid for transmitting power between the input shaft and the output shaft. The mechanical transmission has a housing from which the input shaft and the output shaft extend. The hydraulic transmission includes first and second hydraulic units, each of which can function as a pump or a motor. The first hydraulic unit is coupled to the mechanical transmission system and the second hydraulic unit is coupled to the output shaft. The first and second hydraulic units are offset to the same side of the input shaft and the output shaft.