[forgotusername6]

There are insurance providers in the UK that fit black boxes that work using GPS to check you are following the speed limit. They offer you a lower rate if you obey the law. There are numerous cases of this technology not working and people's policies being cancelled as a result. You couldn't ever attach a limiter to such a system, it would be far too dangerous.

[FrankoDelMar]

This exists in the US as well. In a situation where you need to make emergency maneuvers where you’re likely accelerating or decelerating quickly? Opps, your premium just went up.