Technopagan

Are you sure? Root can see everything.

This is quite close: https://faq.bmwusa.com/s/article/BMW-ConnectedDrive-Upgrades-BMW-IconicSounds-Sport-Availability-UzXZE?language=en_US

You can buy a sound package addon in the BMW “Connected Shop”.

Can you point me to the comment they mention this?

Not being able to distinguish between a shower thought and an unpopular opinion (no kidding). And doubling down by insulting the mods.

Mods are humans and make errors. No reason to suspect a conspiracy or be a dick about it

Did you free up space by manually deleting files from the boot partition? Then chances are you deleted some vital files and you should reinstall the kernels and grub.