Is this merely adding a device to a criminal’s vehicle? What stops manufacturers from including speed limiters by default to make it easier to retrofit cars? Then what stops a switch from being flipped to enable it for all cars regardless of “criminal” status? Unlike breathalyzers, which had an economic barrier from reaching step 2, a software limiter has no economic barrier.

A user controllable software limiter is already in Tesla vehicles for example. It would not take much to go from it being user controllable to being controlled by state law. That brings us to an issue analogous to the issue opponents of backdoors in encryption want to avoid, which is that there is nothing stopping it from being used indiscriminately.

That said, this would likely start with adding devices to “criminal’s” vehicles because older vehicles do not support this, but it would end with these “device” being integrated into every vehicle from the factory, since the other safety equipment being included in vehicles makes it easy to deploy this in software. I find it odd that people who are opposed to encryption backdoors do not see this.