Also, there has been huge consolidation in the market. For example, BMW owns Rolls-Royce and Mini, the Volkswagen group includes Audi, Bentley, Bugatti, Porsche, Skoda, and others, Volvo is, IIRC, chinese and Chevrolet Korean, and there are lots of reciprocal relationships such as that betweeen Renault and Nissan.
There are almost more car brands than car designs.
And remind me again who would want to license technology from a company who has zero experience in delivering mission critical solutions.
Plus cars are 10-20 year commitments, is Google going to be there and still interested in this? I am not even mentioning the strings Google might attach, like using Google Tires to be "compliant and be able to use the {brand}" (see Android)
Wrong answer. The car companies that currently have their own projects:
Audi / BMW / Ford / GM / Honda / Hyundai / Lexus / Mercedes-Benz / Nissan / Porsche / Tesla / Toyota / Volkswagen / Volvo
And remind me again who would want to license technology from a company who has zero experience in delivering mission critical solutions.