I'm sorry this is happening to you. I can assure it is not normal or common on the S650
I do however remember someone else posting with the same exact problem recently. They even mentioned a vibrating rear view mirror. If I remember correctly it turned out to be an easy fix that completely...
https://www.mustang7g.com/forums/threads/2026-fx-package-revealed-in-new-adriatic-blue-metallic-color.168687/post-3384970
The Magenta car has the FX non-recaro interior with non PP white wheels.
I read it in a press release somewhere, and photos of a non PP FX have been posted on this site showing different wheels and non recaros. I'll try to dig it up.
I'm 99% sure I read that the recaros come as part of the PP version of the FX package. Also note that the wheels are different between PP and non-PP (both are white). The turbine style only comes on the PP.
Just for the record, Ford has been saying they need to cut weight on the Mustang for the last 3 generations. For whatnever reason it never comes to fruition.
This is a good read that may help some people on the subject.
https://autoupgradeclub.com/blogs/our-blog/stereo-vs-surround-sound-in-cars-enhancing-your-audio-experience#:~:text=If you're an audiophile,well meet all your needs.