Thanks for responding. I guess I understand more where you are coming from now. You may have a point. I don't know what will happen. I guess it depends on how hard it is to design around Toyota and Honda's patents. Maybe making a diesel hybrid or PHEV would be different enough to not violate their patents? I long for the day of the diesel PHEV, as I think it might be the only practical fossil fuel vehicle in the long run. It seems to me that such vehicles are years off, and I'm afraid we may be moving too slow, so that by the time they finally arrive things will already be a mess. I guess we shall see.