I don't think you need to spend millions to see the lack of capability in Tesla's supposed full self-driving. Tesla doesn't even achieve full self-parking. Other manufacturers are better at it:
This is a guy who ran a business sucking at the tit of the military industrial complex, and now that he is entering the automotive business, does not like having to face some real competition.
https://www.youtube.com/watch?v=nsb2XBAIWyA
https://www.youtube.com/watch?v=-nBnZ7GqPiM