As recent lawsuits show, many California companies developing self-driving cars are related to each other.
It's not always a happy family.
Key engineers and executives from pioneering companies such as Google and Tesla have jumped ship to form their own self-driving startups, such as Lucid Motors and Otto.
Google's program, in turn, was shaped by a handful of engineers from two universities: Stanford and Carnegie Mellon in Pittsburgh, a hotbed of self-driving research since th
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