[jaywalk]

I have that in my 2020 Ford, and you can tune the alert threshold from 0-5mph over the limit. I wouldn't even consider turning it on unless I could set it to at least 10mph, however.

The vehicle has a camera that looks out for speed limit signs, and then updates a little icon on the instrument cluster with the current speed limit. It works very well.

[zola]

I was driving a car like that few times, with beeping when the limit was exceeded. Annoying, but informative, unless road sign was limiting vehicle mass to 10t and not speed to 10km/h. It was carsharing vehicle, so I didn't bother to turn it off.