Some interesting acts you nay not know.
most modern cars today actually have black boxes fitted, so in the event of a crash, they can download speed, location, wether you were wearing a seat belt, if you either accelerated or braked, which systems were live
it will be in your owners manual as event data recorder or accident data recorder.
secondly, interesting. I have a car camera in my windscreen, it can read the road signs, with the adaptive cruise control can also use the nav system to check speed limits and can already control your speed
in the past this was a software change, on or off, but VAG have now made ut a SWaP fake which can only be changed by accessing the VAG servers.