The Leaf would pre-condition the battery for departure for optimal temperature, and it helped because battery has thermal mass, but the air density seemed to be a bigger factor.
The "standard" tests, like MPG tests, can easily be gamed. It is an interesting question about why the I Pace with larger battery, and a very good drag coefficient and weight, theoretically does so much worse than Tesla. What I was trying to say is the I believe Tesla must be optimizing for the test cycles, because I have a much harder time getting ANYWHERE near the test range in Teslas than I did with the Leaf, the Bolt, the i3 or the i8.
We hopefully will all have much more data soon enough. I remember in the early days of the mass electric car (Leaf) there was so much data, and so many people shared their actual range and battery degradation information. It was incredibly educational.