Thanks for the info.
What I am lookinh for is any actual experience with 2021 Performance Ys.
Here is what I get on my March 2020 MYP by toggling between 20” Inductions vs 21” Überturbines:
20” Induction: 248 miles
21” Uberturbines: 228 miles
View attachment 621485 View attachment 621486
This behavior is (obviously) determined by Tesla. In 2020 Tesla did multiple tests at Fremont and called out three different Model Y trims (two performance trims) on fueleconomy.gov. So they provided the software selection which actually changes the underlying constant and alters your range depending on which wheels you select (it makes no difference to your range of course, since your energy is the same, assuming you don't change the wheels).
In 2021, at least so far, there are just two different trims called out, so I would not expect the GUI wheel selection to make a difference in displayed rated range. But it might: as I said, this is up to Tesla, and there's no government obligation for them to show a rated range matching the test result that Tesla did for the EPA (they could show a range of 2000 miles and it would be 100% just fine (though confusing and ill-advised!) as long as the underlying energy was correct).
They just have to provide the energy stated, and make sure that your vehicle (when fairly new) can do the same on the EPA test procedures as the test article did in Tesla's test in Fremont!
As an aside, note that even if it does not change your displayed rated range, the wheel selection WILL change the Energy->Trip and Navigation estimates of your arrival charge. It changes the car's estimate of your baseline efficiency! That's exactly what you want of course. So make sure you have an appropriate wheel selected for your configuration, if you want fairly decent estimates of your arrival charge % (otherwise they'll constantly be adjusting and may be biased towards optimism or pessimism depending on the situation at hand). That's why the car puts up a warning about this when changing wheel selection.
Anyway, I agree, would be nice to see what a new 2021 Performance owner
actually sees when they change the selection - does the displayed rated range (and the constant) change? (I don't expect so, because as
@LargeHamCollider says, that would necessitate showing a slightly higher displayed rated range than the standard LR AWD (about 328 rated miles, it appears), and can't see Tesla doing that in this tricky time when they're populating different trim lines with different density batteries.)
