No, the real progress has been stalled by low fuel prices. Most people would only buy EV (or Hybrids) if they could see a clear short term lower cost. The current high upfront cost of EVs completely outweighs the longer term savings (or other less tangible benefits) for most people. Hybrids were a good bridge solution with only a small incremental cost and significant savings but they are currently not in vogue with people who want something even more efficient, and the gas prices are so low as to be almost incidental to many buyers.

When my ordinary gasoline car gets nearly 40 mpg on the highway, and not much lower in city, I don't have much incentive to go electric. Thank you, variable valve timing engine.

What really reducd my gas consumption was moving to a place just a few miles from where I work.

Yeah, hybrid cars might be called a "local maximum"... at best.

"Local" because they were always predictably a technological dead end.

"Maximum" because they maybe gave us a slight improvement in fuel efficiency, although gas-efficient internal combustion engine cars may have been the more energy-efficient option all along when you consider the up-front cost and maintenance complexity of hybrid cars' dual engines.

The only thing we know for sure about hybrid cars is that Toyota successfully profited from selling people's self-image about being more energy efficient. But since we also have Tesla in the market, selling the actual solution to the problem of gas-burning transportation, absolutely no one should be buying hybrids.

Toyota was selling mass-produced plug-in "hybrids" and Nissan was selling 100mi range 100% electric Leafs before Tesla had even produced the Model S. Yes, Tesla made them sexy, but Toyota, Nissan, and even Ford & GM did the very early path-finding that I think we needed in order to move ahead with the technology and get to the point where people would feel comfortable considering them at all.

"maintenance complexity of hybrid cars' dual engines"

This is an oft repeated accusation by people who only know the concept of hybrids and have no actual experience with them.

The electrical system of hybrids are inherently low maintenance and the gasoline engines run under very low stress conditions for an engine. The result is that the gasoline engine needs much less maintenance. And the brakes are barely used.

This is not correct. It depends quite a bit on commute patterns and electricity source:

https://iopscience.iop.org/article/10.1088/1748-9326/11/4/04...

The Prius is a better option from a lifecycle CO2 perspective in many places than either a high efficiency conventional vehicle or a pure battery-electric vehicle. That changes if your electricity comes from more renewable sources -- California, for example. Shorter commutes favor small battery packs or no batteries at all.