Why Are There Inside Rear View Mirrors In Class C's

tatest wrote:
If the mirror gets in your way, it can be slipped off the mounting puck, and the puck removed using acetone (maybe nail polish remover).

The mirror usually mounts on a ball mount at the top of the mirror. If you spin the mirror upside down and then swivel it up as high as it will go it is much higher up out of your field of vision and gives you better field of view down the back.