I'm sorry, but you don't know what they use to determine the max rated value.

No, I actually do. It is very easily reproducable and measurable. This is how Tesla has been doing this for years.

The max rated value is and always was calculated by the following formula:

Wh total/ Typical constant = rated range at 100%

Something obviously changed after V10 when all this complaining about rated range started.

No, something obviously did not change. Even Bjorn Nyland, the father of this conspiracy theory, backed up once he got access to the CAN Bus...

The only thing that V10 did was to introduce more phantom drain when stationary due to the default setting on smart summon being set to always listen and the car never going to sleep. But as soon as you disable that option all is good.

Nothing else has changed, not in the voltage and not in the consumption constant - also easily prooven.

They are free to, and do, change just about everything with their OTA updates.

They are free, but haven't done this in the last 4-5 years. At least not to the way they display the rated range at charging - the formula is the same across all Teslas.

The only thing Tesla can and has done in the past is: to take Voltage out of the top from S85 (instead of 4.2 they charge to 4.15 or something) which gives you less Wh total hence less range (see math above, Wh is a smaller number)

And the other thing they did was put a lower Typical Constant on the RWD LR - this gives you a higher range due to lower denominal under the division.

And these two cases are just a further proof that the math is correct. And it is a very simple math - 2nd grade math?