Horsepower can be so overrated. At least that’s what the developers from HumanCar, an industrial design firm, are betting on with the Imagine_PS, or Power Station, vehicle. The vehicle uses electric motors and regenerative braking along with human power to keep it moving at a decent clip. “The human part is a patented bi-directional human-power interface, which is like a rowing action that uses your entire body,” says Chuck Greenwood, CEO. “One to four people can operate these cars and they create enough electricity by themselves to power computers, cell phones, etc.” He claims that the car is able to...