Communication between "smart" cars opens up some good possibilities to increase safety even when the inevitable accident occurs. Consider: Car #1 suddenly rea

Communication between "smart" cars opens up some good possibilities to increase safety even when the inevitable accident occurs. Consider: Car #1 suddenly realizes (for whatever reason) it is going to impact car #2 or car #3 at approximately equal energy for either crash, pings both, #3 isn't "smart", no reply. #2 pongs back, car #1 heads for car #2, reports this to #2, car #2 deploys air bags proactively using a lowered-energy inflation mode since there is some advanced warning of the impact and sets its own transmission mode and braking (or lack thereof) to be optimal for safest possible (to inside occupants and other detected cars in the impact area) energy transfer.