I watched the "Hybrid 101" series on Automotive News Today (autonews.com/hybridvideo). The reporter said the ultimate goal is the fuel cell hybrid or all electric.
What I would like to see is a report on what it takes to provide the hydrogen for fuel cells. Look at an energy balance and environmental effects from producing the hydrogen, including generating the power to make the hydrogen, all the way to disposing of the batteries.
Granted, the fuel cell has minimal direct impact on the environment (except those that start with methanol or other hydrocarbons and the carbon has to be disposed of someplace), but getting the fuel still has costs and environmental impacts.
Also, if fuel cells use pure hydrogen, what are the safety aspects of handling high-pressure hydrogen, given that hydrogen has one of the broadest flammability ranges (about 5 percent to 95 percent in air) and also one of the fastest flame fronts, so that many flame arrestors don't work on hydrogen?
My concerns are that many people are focusing only on the car and what propels it and then the car's environmental impact. I feel we all should be looking at the total picture and then making data-based decisions as to what is the best for us overall.
When I see people smoking while filling their gasoline tanks, I think about what the issues will be if we go to hydrogen as the fuel.