It is interesting that both you and njcu mentioned hydrogen powered cars... I spoke to the engineers working on the CalCar conversion and they were very convincing that Hydrogen
is not the answer and that the Hybrid technology is a better direction for now. You have to consider the practical side; the infrastructure for hydrogen fueling stations doesn't exist, while everything we need for a car like the CalCar already does... and if you are unable to recharge the car, you can just use more gas and you are still able to get where you need to go. Of course, ethanol is an important option for the fuel for a hybrid vehicle... and it can be dispensed through the existing network of fueling stations.
I'll let the CalCar guys know that folks are discussing this here though and perhaps they can give some more knowledgable comments
