If Elon Musk can unlock your Tesla, provide location data to authorities, and recordings of people inside the car,...what else can he (or a hacker) do with your vehicle?
Crash it?
Disable the steering or brakes?
Release conversations to competitors?
Photograph your kids?
Prevent it from starting in an emergency?
Force you to upgrade needlessly?
Make it very expensive to maintain or operate?
Enshittification means paying, but not owning, and certainly doesn't mean control.