Car Talk and Talk and… Vehicles that constantly send out signals could save a lot of lives—if drivers accept the technology

Now, the hardware and software to start rolling out a generation of connected cars is almost ready for real-world testing in the U.S. Whether American drivers are ready for a world in which cars send out data on speed and direction 10 times a second and function as automated back-seat drivers is another question. How people react to the technology will be as critical as whether the technology works.