I would be in support of my state making a deal with the auto industry: All speed limits get increased by 10% (rounded to the closest 5mph). I'd even throw in 15%. In exchange, all new cars need to have a speed governor.

I know the privacy people are going to roast me on me wanting the state government to track every car at all times but I am sure we can find solutions where the car knows where it is without the government knowing. Having the restriction for a car not to be able to go over 40 in a city where the speed limit on all non-expressways is 25 would be a very very good start.