Comment Re:Very promising! (Score 1) 294
the tank has a very very tough metal wall separating the reactants (gasoline and air)
Patently false. Anyone who has ever owned a car knows that it is very common to have small fuel leaks on cars 3+ years old because the automobile makers build the tank as thin as possible to save money; rust can eat through a gas tank in a couple tough seasons (and even in a single winter if you live in a northern climate where potent salts are used to melt the ice on the roads).
Also, plastic tanks are very common in cars under 20 grand; although they are impervious to rust, they are much more prone to punctures or shattering in any violent impact.