How about installing an HD screen in the shape of a mirror instead of rearview mirror.
I'm guessing that's a no-no regulation-wise. For the same reason you can't have camera images for side mirrors. Personally I think that would rock however!
My mirrors still work when my camera lens is wet and not usable.
I saw this on a concept cars. It seems to me it's a future.
Here is what I am talking about
Complete with zoom.
I use both the camera and the mirror routinely now.
I'm liking having more info to work with. I find the camera image somewhat disorienting without having another point of reference.
I would be quite concerned about the amount of light emitted from another display when driving at night. Sometimes I wish I could turn the 17" display off.
The e-tron's concept interior looks really cramped after being spoiled by the Model S interior.