Tesla has halfway decent analysis in the energy app. Plug in a destination and go, then see what it’s saying for consumption. Wh/mi, and all of the various contributors to consumption. That should be enlightening.

In any case, 85km from any Model 3 trim level is quite terrible. Even if you lived up in Yellowknife and drove on the coldest night I’d expect better than that from 90% of battery.

IIRC the majority of EVs sold today come with a lithium 12V battery.

The strategy of using Magna is interesting. At least it means the cars are built competently. I wonder how much they lose on each car, tho.