No, as I didn't have reason to suspect it ... because as I previously stated, I am not a performance driver. I never "floor it" ... much less floor it while timing it. The car has sufficient power that I never have had a real-world driving need to do so. But whether or not I used the capability, in my opinion, is a somewhat irrelevant fact in respect to the concerns I was attempting to get across in this posting. I.e., i don't believe it is relevant whether I use it ... to an evaluation of whether Tesla's conduct in this situation is reasonable, acceptable, or possibly needs some work.What bothers me most is that you didn't bother to suspect or check once your car's performance last 4 years. It has been becoming easier to measure 0-60 time with an inexpensive invest from Amazon. Even without any app or instrument, people coming from other luxury sports sedan can feel if it is off from its claimed performance. M3 stealth has 3.2s of 0-60 while M3LR has 4.2 so it must feel so much difference. If it didn't feel any difference or off the performance that means either you didn't care that performance or you have not experienced sports sedan at this fast regime. In the end you didn't need that fast car. anyway.
Don't get me wrong, I agree with you on their fallback and mistake. It's absolutely hilarious. However you should have suspected the car performance with that much diffenece of rhe spec based on the time that you have owned. Four years are much more than enough time to figure it out.
Again this means you didn't need the stealth performance anyway. So I suggest to feel fine by the "badging" of red underline if that gave you some pride.
This also doesn't take away from the fact that a future owner of the vehicle might have ascribed greater value to the car ... value that might ultimately benefit me when it came time to sell.
The primary reason why I cared about the removal is the WAY in which it was done (with zero communication, after a long period of original ownership) ... and the apprehension that scenario induced that such a thing could happen again, to another like me ... or even to me about some other feature that I do actually use. If I can help folks, by learning from my own experience (& mistakes, if necessary), then I view that as a worthy/responsible thing for me to do.
The badging doesn't give me pride one way or another. I am not one to "feel important" because I am fortunate enough to own a higher-performance machine. I merely want it to be accurate in order to mitigate future confusion for anyone who encounters the vehicle. Hence the reason why I subsequently scheduled a service appt to come out and correct it (i.e., remove the performance badge).