Citation needed. What law requires tracking software, touch screens, and vendor-lock-in for automobiles? I disbelieve there is anything preventing the commercial sale so long as it has the minimum safety standards and roadworthiness. Costs money to get everything certified, but it doesn't have to also be enshittified.
Backup cameras don't require touchscreens, they just require a screen in general. Lots of makes are getting by with just putting a little 3" screen in the rear view mirror or similar