For example, when driving a long distance (150m+), it told me that I could have saved X miles if my tires were inflated another 5psi, and saved Y miles if I had used less cabin heating.
That's impressive. I can see accounting for the state of the world, weather, and the elevation change and cornering between A and B, but being able to generate counterfactuals "if X were true or Y were true" is strong stuff.