Hi All, I've been reading up on hybrid vehicles and how the Honda Insight has an electric motor attached directly to the gas engine driveshaft. Their combined output causes the wheels to spin. My question is in regards to when the electric motor is off but the gas engine is on. Why doesn't the gas engine just force the electric motor to spin and the wheel to not move? I know there is some gearing involved, but I don't think the setup is non-backdriveable, and I don't believe there is a physical brake that clutches the electric motor. How about in situations where there is just direct drive? Do they just run the motor at a very low setting to prevent the electric motor rotation? That sounds like a stall scenario to me, and that would use a lot of power. How do you just use one of two motors in a serial configuration? Would love to hear your guys' thoughts. Thanks very much!