Even with the caveats about limited data and untangling causation and correlation, the statistics are striking: the first year of a scheme in Wales where the speed limit on urban roads was lowered to 20mph resulted in about 100 fewer people killed or seriously injured.
Yeah, exactly what I want. My Corolla has all the options, but enabling disabling limiter is not easy (takes at least 3 button presses) and it would be cool to have programmable single-touch limiter.