Pure fantasy. No company would pass up the money that could be made from selling such a device as well as guaranteeing petroleum remains the sole energy transportation fuel for another century.
The first car co to come up with a H/batt no gas vehicle and sell it for under 35k will be the winner. The dems including GW will be passing laws in the very near future making gas about $5/GAL. They are going to tax us into oblivion in the next 12 to 18 months.
The H/batt car will be the future. No one will want to wait in long lines even for the Hybrid.