Alternately, it's amazing and inspiring what just happened; other high-end car makers with a century of experience have shipped imperfect brakes for years (1) and only redesigned them on new models in response to complaints. Tesla, by comparison, is applying the Apple model (when Apple is at its best) of continuous over-the-air product improvement, which can change one’s sense of a product's value for money.

1. MERCEDES CANCELS BY-WIRE BRAKE SYSTEM; DECISION A BLOW TO TECHNOLOGY'S FUTURE. "When the system failed, the hydraulic system took over. But that resulted in a longer stopping distance and additional brake pedal effort by the driver." http://autoweek.com/article/car-news/mercedes-cancels-wire-b...