Alcohol in the fuel tank, hmmm... not the world's most novel concept (In fact, it's a movie standard for when there's a sputtering tank and the gas runs out. someone will invariably pull out a bottle of some sort of alcohol, try to start the engine, and then- BOOM! out falls some critical part. They did it in The Great Race, Back to the Future III, The Gods Must be Crazy II... oh, I feel like I've seen it bunches of times). Besides, I agree with occ and mppkll- some idiot will definitely poison themselves on this (happens sometimes with rubbing alcohol and other odd forms of alcohol that aren't meant for drinking, apparently) so any car maker that uses it will have the inevitable liability issue arise.

Still, the bit about getting the 'hydrogen energy equivalent of 41 mpg' is fairly abstract. Out of context like that, it just doesn't mean anything. If you're measuring in terms of energy, then you need the power produced and the distance driven- gallons don't enter into it, because there is nothing you have gallons OF. A fuel cell, hydrogen tank, batteries and electric motors- where are the gallons? Maybe back at the power plant, burning oil to break down water molecules into H2 and O2, or generating electricity? Hard to say. If they're trying to compare something to something here, it isn't apples to apples. Maybe not even apples to kangaroos- I just can't really tell.