Newest Tesla Autopilot Data Shows A 40% Drop in Crashes (bloomberg.com)

There's a surprise in the data from an investigation into Tesla safety by the U.S. National Highway Traffic Safety Administration. An anonymous reader quotes Bloomberg: [W]hile all Tesla vehicles come with the hardware necessary for Autopilot, you need a software upgrade that costs thousands of dollars to make it work. Since buyers can add Autopilot features after purchase, this provides a perfect before-and-after comparison. It turns out that, according to the data Tesla gave investigators, installing Autopilot prevents crashes -- by an astonishing 40 percent...

Now -- thanks to an investigation that initially hurt the company -- there is finally some real data, and it's good news for Tesla... As the software matures to match the new hardware, Musk said on Thursday via a Tweet, Tesla is targeting a 90 percent reduction in car crashes.
UPDATE (5/4/18): The NHTSA has now clarified that their study "did not assess the effectiveness of this technology.

UPDATE (2/16/19): The study's underlying data reveals serious flaws in the methodology that undermine its credibility, according to new analysis from a research and consulting firm.