There's a movement towards this; look up "Vehicle-to-Everything" or "V2X". The idea is to enable things like one vehicle transmitting sensory information or intent to others around it, helping to prevent rear-end collisions, etc. My personal take is that it's well intentioned, but there will always be things that aren't part of the corpus of communicating devices that will then limit the utility. I suspect the communication of sensor data is the more useful part than some of the demos I've seen so far of, for example, a car sending an alert to a person's phone so they don't step into a driveway when it's reversing.