A motor vehicle drive system utilizing a flywheel for storing recaptured kinetic energy from a moving vehicle is described. Alternators mounted to the drive train generate electrical power from the passively spinning wheels of a moving vehicle. This power may be used to rotate a flywheel. Energy from the continuously spinning flywheel is used or stored for later use to charge batteries which provide power to the drive wheels of the vehicle. The disclosed drive system can be mounted in an all-electric or gasoline-electric hybrid motor vehicle and provides additional power to an electric drive motor of the vehicle.