. . "hub motor" . . . "motor in each wheel hub" . "electric motor" . "front-wheel drive hub motor" . "in-hub motor" . . "wheel hub motors" . . . . . "Wheel hub motor" . . "wheel hub motor" . . "motorwheel" . . "electric motor driving a wheel directly" . . . . "hub motors" . . . . "wheel hub" . . . "direct-drive electrical machines" . "front-wheel hub-mounted motors" . "Wheel" . "Wheel hub motor" . . "Wheel Hub Motors" . . . . "electric motors powering each wheel" . "motor-in-wheel-hub arrangements" .