PURPOSE: To improve drive performance, drive stability, braking ability, drivability, and cornering ability by providing a towing vehicle with independent actuators for respectively driving right and left wheels.

CONSTITUTION: An automobile 10 of which a towing vehicle system consists is provided with a power fetching device 22. A towing vehicle 70 comprises a drive motor 81 to independently drive right and left rear wheels 73; a generator 86 driven by means of a power fed from the power fetching device 22; a solar cell panel; a battery 80; a hydraulic pump 87; an active suspension device 84; a rear wheel steering device 85; a valve unit 94; a distributing unit 95; and a control unit 100. The automobile 10 is coupled to the towing vehicle 70 through a coupling hinge 31. A longitudinal force sensor, a vertical force sensor, and a hinge angle sensor are provided. By means of outputs from the sensors and a running state relation signal for the automobile 10, the drive system of the towing vehicle 70 is controlled.