> Imagine if the EU and others had taken a reasonable stance 15 years ago, and said "every car sold after 2015 must be an EV or a series hybrid with more than 50 km realistic range on pure electric". The transition towards zero carbon emissions from the road sector would have gone exponentially faster.
This is basically what they did. Generally laws try to avoid specifying the technology these days, to prevent locking things in, but the EU and other sensibly governed places have been putting tighter emission standards in place for decades. People were free to meet these goals with whatever tech they came up with, better aero, lighter materials and so on.
If PHEVs were the answer, we'd have more of them, but pretty much everyone realised that going straight to BEV made sense as soon as the oil/battery price passed a certain ratio, and that it was only going in one direction in future.
Here's a 2011 (11 years ago), McKinsey slide: https://therationalpessimist.files.wordpress.com/2015/03/mck...
This is also where the $100 per KWh target people talked about a lot comes from, if batteries get sufficiently cheap, BEVs win, and they did.