FWIW the paper mentions that Google's autonomous driving fleet currently has 55 cars, so I suspect the 100 fleet size was picked to reflect a significant improv

FWIW the paper mentions that Google's autonomous driving fleet currently has 55 cars, so I suspect the 100 fleet size was picked to reflect a significant improvement over a notable competitor in the field. The article mentions Google's self-driving fleet size but I didn't notice other companies. I wonder what the fleet size is at other companies that are working on this, anyone know? The reason I ask is that I'm curious if "making more cars" is really the bottleneck. It's totally possible that the Waymo team doesn't have the headcount to keep up with the data output from the existing 55 units, or the fleet logistics bandwidth to keep up more than 50 or 60 heavily custom self-driving vehicles. It may very reasonably be a staffing issue rather than a money one, and it's possible that even if Google bought the rest of the self driving industry they might not be able to maintain more than a couple hundred cars. Disclaimer: I work for Google, but not on self driving cars. I actually know almost nothing about our self driving efforts, sorry.