Alas, that is a bit of a pipe-dream. It would be nice if there were an open-source codebase for this, with a consortium of companies contributing, as it would mean better systems overall and lower cost to the consumer; but the senior management of the companies that are involved get too big an ego boost from owning the IP on all that cleverness. Plus, the tragedy of the commons applies: everybody wants a piece of what is going to be an astronomically huge market. (Not just passenger cars -- a big chunk of the road transportation & logistics business will be up for grabs too).