> Anyone thats driven a Hybrid Toyota will tell you that fuel consumption is dramatically less, in my real world scenarios I use about 2.5x less gas in something like a Toyota Corolla Cross compared to my not overly thirsty ICE BMW.

well that depends on the ICE car and your driving behaviour. E.g. VW group turbo 4 cylinders from ~5y ago are very efficient. I drive a 5yo Seat Leon ST (basically like a slightly smaller Golf Variant, e.g. a typical European hatchback), and mostly at highway speeds with some mountain driving also. With this I get ~45-47mpg or ~5.0-5.2l/100km. A hybrid would maybe get me up to 50mpg but not much more, as highway speeds are not really where they gain you much. They're great for the occasional shopping run, but where I live those are max. 20min driving both ways, so not that much of an impact either.