There is/was a "performance mode" with which a higher-trim S/X could simulate any lower trim. So a P100D could simulate the performance of a 100D or a 75D, etc. Can the Model 3 do this? And if you ask a 3P or 3D to simulate a plain 3LR RWD, what happens to the Wh/mi efficiency? I realize the second motor adds weight, which affects efficiency. Software can't change that. But I gather that the efficiency drop from the dual motor is greater than you'd expect from weight alone. Speculating, software might be able to narrow that gap. Any 3D/3P owners care to do some testing and share data or observations? Testing chill mode might be worthwhile too. I use chill mode with my TMS 90D to smooth out AP, and I don't see a significant efficiency improvement from that. But the behavior of the 3 dual motor might be different.