Alternatively... Since the government forces me to bring my vehicle to one of their locations every other year for emissions testing, have them install a speed

Alternatively... Since the government forces me to bring my vehicle to one of their locations every other year for emissions testing, have them install a speed control unit with a beacon to communicate with other cars. (Yes it will be harder to install on some cars than others -- even just the beacon would be valuable.) Over the course of five years, retrofit every vehicle with a beacon and have it already installed on new cars, have severe penalties for vehicles caught driving around not broadcasting their signal, and now everyone can have a bit more automation in their automobiles since the systems will enforce safe merge gaps and other nice things like computer-enforced speed limits. Plus it prepares everyone for a fully automated experience that can come sometime in the 2020s. I can dream right?