Why would you (or anyone) cancel the order, unless you are buying the car purely for AutoPilot (in which case read on)? Tesla is a great car, with or without AutoPilot. Just don't get AP, unless you want it as a technical curiosity. You actually have to be more vigilant when driving on AP because it works so well most of the time, therefore it fools you into false sense of security, but when it fails it can cause a lot of harm. Those who relax and are less vigilant than driving manually risk getting into accidents. It's like driving with a student driver who has somewhat impaired vision, blind spots, and experiences occasional seizures - most of the time in good conditions it will be just fine, but when the student makes a mistake you have to be ready to take over at any time. So bottom line, takes more effort to safely drive with AP than without it. From my personal experience, the only time AP comes useful is in stop and go highway traffic, slow moving, no lane changes - there your risk is low, maybe a fender bender. And I say "your risk" because as you may or may not have gathered so far, AutoPilot comes with all the legal disclaimers and warnings that tell you that you as a driver have full override capabilities and therefore are completely responsible no matter what the AutoPilot does.