@Ryan Scott I drive an EV from time to time, and have no issues now. Bothered me for a time though. But I test drove a Jaguar i-Pace which had an internal noise with a frequency that bothered my ears a lot. I've heard that Teslas are less sound proof than many other EVs, but I haven't testes any of them myself.
@Damocles This is the post I read that gave me a concern. You would never think EVs being fairly quiet could spike T but guess you never know. I'm getting tired of buying gas and the model 3s are fairly priced.
I drive this KIA Soul EV occasionally. Yes, you car hear a low electric sound (if you have good hearing in those frequencies). On some cars, this sound can be higher, but also a non-issue. The best thing is to try it out for yourself, alone, and drive in different speeds to check it out. Wind and road noise, with less sound proof cars and big wheels, can also be an annoyance.
Yeah, you can see in my post in that thread @Ryan Scott (and another where I linked it), I was very disheartened by the report. Looking back at it now, I see there are several more posts that share @Samy's experience. So it's not looking good.
Only way to know for sure, of course, is to test drive some yourself, see if there's a problem. Basic trial and error.