It won’t be long until someone finds a way to flash the firmware or install a bootleg sensor or something else. You can already get a lot “chipped” on VAG and BMW cars.
Chances are most manufacturers are going to use a cheap USB camera. Can a raspberry pi emulate webcam? Just place the same video of you diligently staring out of the window on repeat.
This is precisely why you should not want an Internet-connected car. It isn't truly yours if it can be "upgraded" behind your back through a backdoor.