Reply #11: Here's one tank designed a few years back,

[Trillo]

http://www.llnl.gov/str/June03/Aceves.html
It's bulletproof when new.

Here's an old article about the hydrogen powered Focus:
http://www.autointell.com/News-2001/August-2001/August-2001-4/August-22-01-p8.htm

Here's something I wrote long ago (may be outdated) I found in a document of mine:

http://www.bmwworld.com/models/750hl.htm
"The hydrogen engine offers excellent torque and acceleration, while the specially insulated 140-liter tank for the liquid hydrogen provides a range of 400 kilometers."

140/3.79 liters per gallon=36.9393 gallons
400 kilometers/36.93 gallons=10.83 KM per gallon
10.83 KM / 1.61 KMper mile=6.72

BMWs vehicle appears to get 6.72 miles per "gallon of hydrogen." And it will also run on gasoline.

Here's another old document of mine:

http://www.focaljet.com/allsite/content/h2rv.html :

"H2RV is proven technology - it could be put into production," said Dr. Gerhard Schmidt, vice president, Ford Research and Advanced Engineering. "What we are lacking are the other two legs of this three-legged stool - a fueling infrastructure for hydrogen, and uniform laws and regulations that will allow its use across the nation."

It appears that "innovation" is stymied by "laws and regulations" that appear to disallow the use of hydrogen powered cars across the whole nation.

So there are advocates and lobbyists with an axe to grind.

Just food for thought, hope it helps.