Jedi2155
Model 3 has Arrived.
No one knows. But likely they will never actually display 322 miles. Even the 2020s don't display 322 miles yet (not that it matters at all, necessarily) - they seem to display 314 miles instead...(odd). Assuming a software upgrade comes out for the 2020s that actually updates them to 322 miles, then we'll have a better idea of whether they are going to mess around with older vehicles. (They may well improve efficiency on older vehicles, but that doesn't mean any of these displayed numbers have to change.)
Pretty sure I've reported to you in another thread that I think Tesla has figured out how to limit the drive train losses between AWD vs RWD variants where the only negative is the additional weight of the 2nd motor which does not impact range linearly. I've definitely noticed around a 5% increase in efficiency in my vehicle.