No, while smarter traffic signalling may be a worthwhile investment, I am vehemently opposed to any sort of "smart" vehicles, as they are typically anti-consumer in terms of right-to-repair, as well as an inherent privacy, safety, and security risk to the individual, those around them, and to national security.

"Connected" vehicles of any sort open up the possibility of severe privacy violations by the United States government, as well as malicious individuals and foreign nation states; your car should not be able to transmit data about your location.

Similarly, vehicles with steer-by-wire or electronic throttle controls are inherently dangerous. I am not aware of any automotive manufacturer that controls its own software-hardware supply chain enough to provide formal verification throughout the stack to offer the same levels of guarantees about correctness that a mechanical system provides. In addition, even with formal verification techniques, a provably correct system only helps when it is not tampered with. And currently, auditability of integrated circuits/hardware is an unsolved problem that does not appear to be realistically solveable.

As a result, consumers have no way to reproduce and prove that their vehicle is bug-free, and more importantly, has not been tampered with for malicious purposes, be it by their own government, the manufacturer, a rogue employee, an individual, or an enemy nation. This offers, for example, a totalitarian regime to potentially remotely hijack a vehicle and stage an assassination to look like an accident, or a terror group or enemy nation to wreak havoc.