I was watching this video of a live chicken trapped on a moving truck and thought it was strange that it’s not possible to say anything to them even when circumstances might warrant it. All we got is honking and waving. There could be a touchscreen interface with a map of nearby vehicles. It could be voice controllable or the passenger could do it for safety.
I absolutely would not want an open channel to everyone around me. The potential for abuse is too high.
Imagine the giant trucks road raging because you’re in the left lane and only going +20 the speed limit. Or the old creeps hitting on teenagers.
And then there’s the privacy concerns. In order to connect to your car-specifically- it has to know your car is there. Which means your car is constantly putting out a beacon. This would be similar to how cell phones work - and are now being used by merchants and advertisers like Walmart to track where you go in stores.
And then there’s the security concerns of people pushing malware.
And then there’s the question of distractions from having to respond to people reaching out or shutting them up or whatever.