Got this idea from watching Bjørn's Norway Model S driving video yesterday and the new Parking In HK thread. (from 18:41) I think the guidelines can be easily added to the Model S firmware. For parking and for entering carparks. You see, I mostly drive my sister's BMW 520iA to carparks and the most frequent carparks I visit are the Hang Lung ones (ie. Kornhill, Winsor House) and Park Lane Hotel carpark, which is opposite Winsor House. They are just tiny gaps for the width (2102 mm / 82.8" mirror to mirror) at the entrances. It is terrible!!! It has sensors but camera doesn't work in forward gear, making it purely a guessing game every time when entering. One time driving up (steep incline) the entrance, I freaked and had to reverse the car to adjust the angle of entrance. Model S has a mirror extended width of 2189mm / 86.2", that is almost 2 inch wider on each side, making it even trickier to enter. Maybe fold up the mirror when entering (doable)? Because that will shrink it down to 1964mm / 77.3", but then we can't see how much space we actually have left on both sides. Tesla's rear camera will help, but not sure how much. With guidelines, things will be much more easier. Do suggest how else can a new feature added to the firmware make your life better. Perhaps someone from Tesla will see this one day.