I sat in a CTS-V Coupe...I thought that rear visibility was some sort of a joke. I seriously looked back to make sure there's wasn't something propped up there on the rear deck behind the seats. I was like "no way...I literally can't see a thing". There was another car parked behind the Coupe (this was at a dealer), and I couldn't see it! I can't imagine the hell owners of this car go through when backing up or switching lanes - I know I always use my rear view before switching a lane, just in case there's some f*ckwad speeding from a distance behind me.