Are they investing in Didi the ride sharing company or investing in Didi, Uber's arch rival in China?<p>The chess game afoot in the autonomous vehicle battle is attracting some strange bedfellows between Apple, Google, tesla, ford, Mercedes, Uber, Lyft, Volvo, Nvidia, etc.<p>The end game is outrageously big, generationally big, and it's going to be a treat to watch the Titans lock horns.