Re: You've missed the scariest parts
"And for heavens sake who picked cars like the Hyundai Tucson and the like as test autonomous cars - could you be any more stupid? They're so big "
Big? A Tucson is small, though not quite tiny. The Santa Fe is a reasonable size if you are not into full sized vehicles (I generally drive smaller vehicles like Altimas, Camrys, or Sonatas).
In any case, you don't want to send a test driver out as a passenger in a tiny experimental vehicle that may be in an accident. I suspect there may be liability issues about unsafe working conditions lurking in such a situation. Purely from a workplace safety viewpoint a case could be made for a full sized vehicle like an Escalade, Yukon, Ram, or F250, particularly when those types of vehicles make up many if not most of the other vehicles out there.