That is interesting that you mention the Chrysler only getting 12mpg, because I thought I remember them getting 20mpg on one of the later models, which was decent gas mileage for back then. But of course I can't find that info anymore
If the jaguar can get 30mpg with its setup, it would sure seem like a smaller setup could get much higher gas mileage with much less weight and even a 1/4 of the power needs. Old M, do you think there is no chance they will come out in high mileage production cars?