[theamazing0]

I think legally they would need to require using an app for their back view camera. All new cars in the United States after 2018 need one and I don't see how it would work without using the phone/tablet as a display.

[mulmen]

The article says the rear camera feed will be displayed on a screen behind the steering wheel which doubles as the speedometer and charge display.

[ryandrake]

That seems like a clever and reasonable compromise to comply with a particularly bad regulation.