I purchased my 2013 Prius C because it was a four door, four passenger sedan. Unfortunately, the rearward visibility is SO bad with the rear seats up, and especially with rear passengers, that it is unsafe IMHO to drive in reverse. I backed into a low fence post that I couldn't even see. Thankfully, it wasn't a child, but it could have been. To further complicate matters there is NOTHING behind the rear bumper cover near the ends/corners. Nothing. It's soft and if you do back into something it completely destroys the bumper cover. Mine is torn beyond repair. And how did Toyota respond to my complaint? They said their engineers could back up using the rear view mirrors. Duh. So can I… But I can't see what's behind!