I made a mistake and it's going to cost me. Foolishly, I tried to back into a very narrow driveway bordered by a concrete block wall on one side and a house on the other. I felt a false sense of confidence as I kept my eyes on the big screen as I guiding the two white lines into the driveway, albeit very slowly. Crunch! I guess the two white lines mark where the tires are while the body extends out even further. So I hear the car scrape as the side of the rear bumper rubs the wall. Oh no! I was confused by all the beeping going on; I bet it was telling me that I was too close but my eyes were on 17" screen and not the Dashboard display I won't make that mistake again. Suggestion to Tesla. In addition to the thick white lines that are superimposed over the backup camera image, would you consider adding thin blue lines to denote the width of the body? Maybe with a short perpendicular lines sticking out to denote the side mirrors. THANK YOU.