-
They'll be some analytics in the software that register when it's on, how long it was on for, how far the car travelled with it on, etc.>
Load of data collection. All the testbeds are collecting data and its a real "Big Data" issue with strong demands for analytic collaboration-- a number of German automakers and suppliers are whence joining forced under the flag of ASAM and the Eclipse Foundation to establish some open standards.
You might have mentioned that the Tesla driver was actually killed:
http://www.standard.co.uk/news/world/us-government-investigating-first-known-fatality-involving-selfdriving-car-after-tesla-ploughs-into-a3285576.html
And yes, it's not the same as 'self-driving'.
How do they know the 130 million miles figure? Computer tracking of these cars?