It's hard to predict the future (as always). Technology for this domain develops rapidly and a single innovation (like Power to X ) has the potential to change everything.  I guess that we are in a pretty early state and should be prepared for some surprise and the enormous costs for this transition. What seems to be sure though is that major OEMs announced to not develop new combustion engines, which is a strong statement and likely one reason that Merc is selling so many AMGs