According to navigant research (https://www.navigantresearch.com/research/navigant-research-...), it's GM (who bought cruise automation), and Ford (who bought a majority share in Argo AI) who are the most advanced.

"who are the most advanced". Any sources for this? As far as I'm aware none of their cars are on the road in the hands of customer.

Also a lot of this companies are betting on Lidar becoming magically cheaper. Buying a company doesn't necessarily mean they'll kill it. Big companies have a lot of politics and red tape before integrations can even happen. I was at MS when they bought Skype and later Nokia. Middle management blew the whole thing up.

Most likely the technology that will be used will be that of which Google is developing. Tesla is nothing more then a glorified cruise control. And don't throw the number of miles driven number back.