It's not authoritarian rule and social control to limit the speed of death machines inside a dense city. I don't want fast cars in my city, I don't want the noise, the fatalities or injuries, nor the pollution.

Cars are a privilege, you need a licence from the government to drive them, are you going to advocate for removing driver licencing as well? Because that's pretty much full government control over who can drive or not. Pretty authoritarian, no?