Even Google's version will have risks and I expect will make mistakes in early iterations. Having a max speed of 25 MPH and limiting deployment will reduce some

Even Google's version will have risks and I expect will make mistakes in early iterations. Having a max speed of 25 MPH and limiting deployment will reduce some of this risk, but AI is hard and the environment is very open and will constantly include novel states the agent has to make sense of. Personally I'm concerned the initial Google design doesn't include a steering wheel for manual override - seems overconfident to me even for normal scenarios let alone degenerate ones (weather, internet connectivity, GPS malfunction, construction, bad maps, road damage, etc.).