Car-To-Car Communication

Unlike driver-to-driver communication, this (probably) won’t involve middle fingers. Once cars are connected thanks to technologies such as Intel’s M2M (Machine-to-Machine), they’ll be able to share data with other cars on the road and warn drivers of accidents, as well as figure out alternate routes based on real-time information — which in turn will help cut down on traffic and increase safety on the road.
As an example, the Car2Car Communication Consortium points out a fairly commonplace scenario: A motorcycle is riding alongside or just behind a larger vehicle on a main road, while you wait at an upcoming intersection to make a right turn onto that road. The larger vehicle turns off the road, and because you still can’t see the motorcycle, you pull out — right in its path. With car-to-car technology, both you and the motorcyclist would receive a warning early on, which would likely help avoid a collision.