Literally everything, look the other way, this would never be used against people, no way.
Imagine, they can just turn off every car for any reason, anytime
https://amp.hothardware.com/news/bidens-infrastructure-bill-mandatory-backdoor-car-kill-switch
The Infiniti cars already have variable compression in the VC-Turbo engines. They are variable from 8:1 to 14:1 compression.
link for video on how it works.