All I know is that in order to get 1 displayed mile = 1 actual mile, I have to drive at approximately 275 Wh/mi. If I drive at a higher consumption rate, 1 actual mile > 1 displayed mile. If Tesla is using 300 Wh/mi = 1 rated mile, why do I have to drive at 275 Wh/mi in order to get real miles to match the displayed range?
Now when Tesla tests to EPA specs, it must run the car until it literally shuts down. That means past zero. I've never driven past zero. Does the fact that I'm seeing 275 Wh/mi to achieve rated range imply that I have some hidden miles below zero?