> Porsche’s eFuels are made out of CO2 and hydrogen and are produced using renewable energy.

Am I missing something obvious? Even if the fuel production is carbon-neutral, wouldn’t the ICE cars still be combusting the fuel and releasing CO2? Hydrogen fuel-cell cars don’t release the CO2 because they use a different reaction. What I don’t understand is how this new fuel would change the fundamentals of an internal combustion engine regardless of how it’s made.