The problem is efficiency. From two EU reports:
According to German Energy Agency report : The potential of electricity-based fuels for low-emission transport in the EU
The overall energy efficiency of electricity use in battery electric vehicles is 4-6 times, and via hydrogen in fuel cell vehicles about 2 times higher than e-fuels in combustion engines including grid integration.
https://www.dena.de/fileadmin/dena/D..._in_the_EU.pdf
They think eFuel will be still be important for the transition and also for aviation, shipping, and freight hauling where batteries don't have the energy density.
Another report called: What role is there for electrofuel technologies in European transport’s low carbon future? Says:
Drop-in electrofuel production is not as energy efficient as direct supply of electricity for electric drive vehicles. For instance, Transport and Environment (2017) state that the direct supply of electricity for battery charging delivers an overall 73% efficiency from electricity production to energy use in transport, while use of hydrogen in a fuel cell vehicle delivers only 22% energy efficiency and drop-in electrofuels deliver only 13% overall efficiency. Still, electrification cannot meet all transport energy requirements, and even in passenger vehicles it is likely to take decades to eliminate internal combustion engine vehicles from the fleet.
https://www.transportenvironment.org...ls_final_0.pdf