Too much discussion of the price of Autopilot and whether to buy it or not.....Is it worth it? You bet. A recent trip south on I95 in VA had me in the left lane of a 3 lane stretch going 65 while on "Nav on AP" with cruise set at 70 in an AWD LR M3. The car suggests moving to the center lane, I acknowledge OK, the blinker goes on and the car moves toward the proper lane. Everything seems normal until the M3 pulls violently back to the left lane with such force that my wife's head hits the passenger window and I notice a Corvette had come from the far right lane and a few cars back and flies by me in the center lane. He/she was doing in excess of 100 and would have probably have hit us. I know I would never have seen him/her as he/she would have been in my blind spot. To me, Tesla cannot put too high a price on this technology.