I saw a different version of the FCX, well a slightly different version.
The fule cells (3 each) were located between the seats (left and right) as opposed to in the back where the H2 flasks (only 2) were mounted. If I recall correctly the FCX had a proposed range of only three hundred plus miles ... which in my opinion is not sufficient but without question we are seeing the beginning of the end of the gasolilne/diesel power motor vehicles.
Fred