I saw a YouTube video where some guys “maximalised” the range to see how far they could go on one charge, and by reducing weight and disabling cabin AC and going under 25 mph were able to travel I think over 600 miles. Good to know in a pinch.
Honestly the cabin AC makes very little difference.
You’re right though, that’s how you set world records. If you drive an EV at like 10 mph you could go a pretty insane distance. But no normal person would ever do that.