Ok so about the heat pump and the range increase, I'm slightly confused. If the range increase is due to the heat pump, we would see a relatively higher increase in the SR+ than the LR because the energy lost to heating the cabin is constant; say it used to be 4kwh and now is 1kwh, this benetits the SR more (3 kwh is a 6% increase of the 50kwh pack, vs 3,5% on the LR 80kwh)
The range increase we're seeing matches more with a higher density battery, because a 5% improvement means 2,5kwh more on SR and 4kwh more on LR, which they can just multiply by m/kwh to get the numbers we're seeing.
Heat pump could still be in there, but the relation to the range increase seems unlikely?