For each of those 51 hybrids you need to manufacture an extra ICE engine. Which is not cheap. It's more complex to make a drive train that can seamlessly handle switching from EV to ICE. So it's more difficult to manufacture. Has there been a study that takes the whole lifecycle of a hybrid into account vs an EV or ICE?

Would be super interested if there had been a research that also takes into account that we don't need SUVs that seems to be the go to car in the US.