Here's a video of the HySeries Drive from Ford. It is a fuel cell/ battery hybrid. This is fine, but it would be even better if you get rid of the hydrogen storage.
More on fuel cell problems. One of these is the cost of platinum. If you mine the asteroids and the Moon for Platinum Group Metals, you just might get the price down toward a competitive level. Also, the hydrogen storage problem goes away if you don't have to store it at all. Which is what I am trying to figure out.
Here once again from the JPL pdf file; which is the pertinent information on how it can be used in an automotive application.
|NASA Tech Brief Vol 26, No. 6 Chun, Valdex et. al, JPL Report number NPO19948|
Either the authors are incorrect as to this potential, or this technology is being consistently overlooked.