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California just opened the floodgates for self-driving cars
(www.washingtonpost.com)
This is a most excellent place for technology news and articles.
And there's almost no way a modern (feudalistic) car company will allow you to use your car this way to earn money.
The corporate masters are already not so keen on paying you when you are actually driving the thing. Do you really think they'll let you in on the racket?