[Scrambler Bob]

It is done with GPS. My 2025 car alerts me when I exceed the speed limit.
= == =

I drove a new car. It could do that. I think it used the car GPS for location, and probably real-time mapping showing traffic conditions (requiring internet connetion), to determine the speed limit for my location.

Kind of helpful. Kind of ‘Big Brother’.

[EVO X]

Yep, it also uses real time telemetry data from the sim card for traffic jams.