Does anybody know here how much Hydrogen (in kgs) is required to run a car?

Just to put things in perspective..LPG (used by cars) probably contain around 11kgs of fuel.

A Hydrogen cylinder with the same size can only contain around half kilo or even less. However, it only has 3 times the energy value compared to LPG..So you have to load at least 7 H2 cylinders in that vehicle to get the same mileage as the LPG car. I wonder where the passengers will sit.

Lastly, I have a H2 Electrolysis unit here where I work...and with a capacity of 10kgs per hr...it consumes electricity enough to light up a small town.