Related, although a bit off topic, but Blind Spot Detection is a glaring defect. My kids' Volvo can do it well, my wife's Range Rover can do it well, but I'm ashamed that my Tesla is third best in my household. They should disable lane change until they fix this. I brag on the car all the time, but this is embarrassing. I've yet to take anyone with a high-end car for a demo who doesn't remark on this weakness.
I don't have a Tesla yet, but this was one of the things I was worried about and made a point of examining on my second test drive. I felt like leaving the rear view camera up on the center screen gave me great blind spot coverage - by the time a car disappears from the screen entirely, you can see it right beside you. A motorcycle could possibly hide in that space if you didn't see him enter, but no one else can.
Walter