I've thought about that for a while now. My car knows how fast I am going and it now knows what the speed limit is, so all it needs is a little printer to print out the speeding tickets.
does it really know what the speed limit is?
apple maps in Oregon is frequently wrong about speeds - there are rural routes near me that are 55mph, that apple labels 25mph and refuses to change.
And when it is relying on mapping data, it's not uncommon for it to mistakenly think I'm on a frontage road because the GPS/map is off by enough.
In my experience, it knows what the speed limit might have been at some time on some road. Not necessarily the one I'm actually on or at the current time.