Car industry/Fuel Cell Car/E-Vehicles

ADACmotorwelt, journals Feb, May and Oct 2, 5 and 10 / 2018, Fuel cell cars produce their own electricity by a fuel cell powered by hydrogen. They refuel hydrogen at special hydrogen refuelling stations and drive without emissions, i.e. they do not produce CO2.They work with polymer electrolyte membrane, PEM. For an explanation of the principle please see ADACmotorwelt, 5/2018, p.22 or https://de.wikipedia.org/wiki/Brennstoffzelle#Chemische_Reaktionen. Hydrogen H2O can react with oxygen O2 in a fuel cell to generate electricity and drive an automobile via an electric motor. Especially large and heavy cars can benefit from fuel cell technology. Hyundai Nexo has a range of around 540 km. Fuel cell cars are available from Hyundai, Honda and Toyota. In Germany in end of 2018 cars can refuel hydrogen at around 50 refuelling stations. However, a fuel cell car is only as environmentally friendly as the electricity used to produce the hydrogen – i.e. not more environmentally friendly in operation than batterie-powered electric cars. 
An input given to me (Dr. von Werz) to these sentences:  It seems even more to need a lot of power to produce hydrogen.

Subsidies in car industry, 22 April 2019: http://www.spiegel.de/wirtschaft/unternehmen/elektroauto-foerderung-bmw-und-volkswagen-streiten-ueber-subventionen-a-1258834.html