Since there’s lots of confusion here I believe two things are true at the same time, 1. Tesla has a great estimate of the battery Wh/mi when navigating or drivi

Since there’s lots of confusion here I believe two things are true at the same time, 1. Tesla has a great estimate of the battery Wh/mi when navigating or driving, 2. I think what is shown as Wh/mi is misleading if you only track power dissipation -while driving-. A parked Tesla is not consuming 0 W… and I believe this is the point. The article appears to show that reduction from idle power consumption when the car is parked is substantial. If you expect to use all the battery Wh for driving off a single charge, the article claims you can only really get a total value of 50-60 percent of that in typical drive scenarios (eg commute for 1hr, park, drive home, etc until end of range).