FSD「功能完成」是指功能達到Level 4，但仍需監督，Elon在電話訪問中提出三個階段：
●feature complete：功能完成(需駕駛監督，可靠度未達人類水準)，時間表為2019年底
●no need driver attention：不需駕駛監督(可靠度超越人類數倍)，無時間表
●regulators agree：法規允許Level 4無人駕駛，無時間表
But in terms of feature complete for self-driving as I've said before, I'm certain that we'll be feature complete with full self driving this year but at the risk of belaboring the point, with feature complete full self-driving, the driver will still need to pay attention because the reliability level will take longer to address. And then even after we've feel we've addressed the reliability we need regulators to agree that that is that driver attention is no longer unnecessary.
Elon也提到他開的測試車已經可以在市區路口順利轉彎
I'm driving right now the development version of Autopilot and it works extremely well in terms of recognizing traffic lights and stop signs and is now starting to make turns effectively in complex urban environments. So I'm confident enough at this point to say - to sell full self driving. And and and, yeah. I think it's looking really good like the features I'm talking about I'm driving in development mode right now.
Elon的時間表常常過於激進，所以到2020年才完成也不意外
來源：https://www.valuewalk.com/2019/03/tesla-conference-call-full-self-driving/
