There are two problems which will make hydrogen never work as we currently understand it.
1, you cant make hydrogen
meaning, it results in a net energy loss. You have to use huge amounts of electricity to split it up. then once you have the gas, do you drive around with a hot air ballon on your roof full of H? no, you compress it into a tank or even liquid H. This compression takes stacks more energy finally pushing H to crappyness. There was a guy in QLD charging his massive car batteries overnight to split the H on the fly to power his 5L v8 chev powered car. you would be way better off running the batts right into an elec motor to power the car.
2, you cant store H
the mercedies H car had a tank which was the whole under floor of the car, pressured at 10,000psi. range? 150km, what crap
a modern electric car can double that easily + its more efficient, simpler, cheaper, more reliable, less maintenance, quieter and way way way way fassssster. electric all the way gentleman
hyrogen/water is not a power source, its an energy carrier and not a great one at that if you look at energy density.
check these links for friggen fast electric vehicles
http://www.commutercars.com/
http://www.evehicle.com.au/racing_po...ml?openmenu=10
http://www.acpropulsion.com/tzero_pages/tzero_home.htm
i would love to make an e34 a very fast electric