That is very intersting stuff! IMO hybrid technology is not the way to go. Emissons are lower but the impact on the environment in the long term is much more damaging with all the used up battery cells laying around. I think they are only good for 5 years use? and very expensive to replace. I would like to see hydrogen powered vehicles but I am not sure about the consequences of that either.
I was reading Cottage Life magazine the other day and there was a letter to the editor from a guy that drives a prius and he was extolling the virtues of it. Very ill informed and an unknown victim of mass advertising!