Built-in Dash-cameras

It would be great if vehicles had an option when buying to have a built-in camera near the rear-view mirror, like a GoPro.
PETER N 10/06/2014
First off using the existing rear camera for backing up as a constant on for a small lcd on steering wheel or driver dash system is better. However, adding a camera to the left and right mirror also with two additional lcd would help greatly with those that can not use duel mirror designs and also eliminate blind spots. Having and additional radar system to sense cars around you would be a good thing as well. Hyundai is doing this already in their own way.
Austin T 09/09/2014
I think this would really be a good option for fleet vehicles.