Electric cars are as old as Otto-cycle cars, if not older in many respects. The Pseudoscience Guy ought to stop opening his mouth and removing all doubt . . .
Electric automobiles have all suffered from the same limitation since the beginning - the vehicles rely entirely on however good the battery pack is, and have no on-board means to generate the electricity needed in the amount needed unless they go to an auxiliary power train that relies on some form of an internal-combustion engine and on-board generation system.
Battery technology is woefully far lagging even after a couple hundred years since the first galvanic cells were demonstrated by developing a voltage potential between unlike metals and a salt bridge. The chemistry has grown much more sophisticated, but the energy density per pound of voltaic cells or batteries is still actually pretty low.
Now, electricity is still highly efficient as a means of transmitting power, and is a matter of keeping resistance within the circuit low enough for nearly 100% transmission of the voltage made available. Electricity moves with almost instantaneous response time, getting to full potential in such a short time as to be negligible. Merely mechanical systems of power transmission are relatively slow, subject to many power-robbing points of degeneration into heat energy, through friction or actual but minor damage being done to the mechanical components themselves as they engage. Gears need lubrication, otherwise they grind themselves down to razor edges. Even fluid transmission systems are subject to a choke-off of power due to constriction of the supply lines from the drive motor to the slave unit, and resulting heat generation.
Conversion of gaseous elemental hydrogen into water vapor in the presence of oxygen probably has very good energy efficiency, except that elemental hydrogen exists only under very special circumstances, as part of syngas, or as a result of electrolysis of water, both of which require a great deal of external energy to force the reaction to create elemental hydrogen, more than what is recovered by recombination of hydrogen and oxygen in a fuel cell.
Besides which, hydrogen is a real b!+<# kitty to work with, as it is extremely explosive in confined spaces, it leaks out of just about every threaded seam ever devised, it forms compounds with metallic elements that have little ductile strength and are subject to fracture, and it requires a large volume to provide adequate storage even under extreme pressure, as it does not liquify until a very low temperature is attained, -423 degrees F (-253 gradients C)
But man, does it ever have great potential for providing on-board power generation using fuel cells.