Subject: Can water be used as fuel in a car?

Knowing that hydrogen is part of the make-up of water (the H in 
H20),couldn't a car engine be designed that uses water and extracts 
the hydrogen just prior to its injection in the engine(for safety) so 
that the engine would only require a tank of water and would store no 
hydrogen knowing how volatile it is,and the engine would most likely 
produce much less harmful exhaust emmisions. Could this be done?

Re: Can water be used as fuel in a car?