As for the A-pillars, I read about a solution somewhere, goes like this:

- There is a camera on the 'out' side of the A-pillar;

- There is a screen on the 'in' side of the A-pillar;

- The car tracks driver's gaze and projects the camera view on the A-pillar screen, so as to stitch together the views from the windshield, A-pillar screen, and the side window.

The result being, it looks like the A-pillar is not there at all.

I wonder if some car already has that. Iirc some teenager presented similar solution on a science fair.