Google has reportedly stopped developing its own self-driving car
I don't think this is all that surprising to be honest. Google is (by and large) a software development and services company, not a car manufacturer. If they make their own autonomous vehicles, that means they then have to handle everything from safety testing to customer support and sales in addition to the self driving car technology itself.By working with existing car manufacturers, they can focus on their part of the deal (the technology) and let someone who knows about designing, building and selling cars do the rest of the job.