Tesla may have begun by doing that. Recall that last October autopilot was introduced "over the air", so, customers who already had vehicles could use it immed

Tesla may have begun by doing that. Recall that last October autopilot was introduced "over the air", so, customers who already had vehicles could use it immediately. Presumably, Tesla was collecting data up until that point. I imagine Tesla is generating more sales with a usable autopilot. It generated quite a bit of media hype and they are having trouble keeping up with production demands. So, Tesla chose to introduce this feature to increase sales and get more data on how drivers interact with the system. It seems excessively risky to me. I'm not building a self-driving system myself, nor running a huge company, so I can't say much about what it takes to do that. I can say I would not like to drive on the road next to a vehicle that can unexpectedly make the wheel turn, forcing its driver to be corrective at a moment's notice.