This is pretty wild sounding, and if true, would seem to be the ideal solution for today's energy and environmental issues concerning transportation. I hope to hear more about this one in the future.
Excerpt:

"IsraCast recently covered the idea developed at the Weizmann Institute to use pure Zinc to produce Hydrogen using solar power. Now, a different solution has been developed by an Israeli company called Engineuity. Amnon Yogev, one of the two founders of Engineuity, and a retired Professor of the Weizmann Institute, suggested a method for producing a continuous flow of Hydrogen and steam under full pressure inside a car. This method could also be used for producing hydrogen for fuel cells and other applications requiring hydrogen and/or steam..." Link