Without government influence, auto manufacturers already have "black boxes" that record speed and other telemetry. I'm very conscious of the erosion of privacy,

Without government influence, auto manufacturers already have "black boxes" that record speed and other telemetry. I'm very conscious of the erosion of privacy, but I'm a 40-something computer nerd. People actively, deliberately record themselves doing crimes of all stripes and post it to public social networks. In the states, there's rampant violation of vehicle-related laws and minimal enforcement (fake temporary tags, deliberate obstruction of real license plates, deeply tinted windshield and driver/passenger glass, not to mention rolling stops and speeding) Modern cars record their speed today, no one bats an eye. Even before in-car tech could do this, you could passively enforce speeding by using toll booth data, but that doesn't happen. Neither side cares enough to bother.