Hello, I almost forgot the efficiency when driving in a nice day temperature-wise. Finally, we got a really nice weather today (17°C /62F) and I was driving on the highway at 100km/h (62mph). As far as I remember from last year, driving at this speed should be around the rated line, but I noticed today driving for 20km that I was at 150Wh/km (242Wh/mile). That's a really low number. Did Tesla change anything in the past few months? I hope people from the south can comment on this. Thanks!
Using Tesla range calculator at their web site, the estimated range of an 85D at 65 mph at 70 F is 295 miles. The maximum energy you can get from the battery is about 75 kWh. 75 / 295 = 0.254 kWh/mile. So you are getting the expected mileage for the car.
If the calculator isn't accounting for weight in vehicle, elevation changes, and wind - then that is complete BS. In my P85D yesterday I averaged 65MPH with no AC on, 72F and barely got 210 miles out of a full charge. P85D all options and 21' staggered wheels and Michelin PS2 tires.