One of the developments in automotive technology has been systems that warn the driver of objects and other cars that appear or stop abruptly in front of them. Recently auto manufacturers have been able to tie this into to a car's brake system to automatically stop the car.
The frustration for me is the way this technology is sold in the United States. Playing up to the worst fears of drivers. While fear is an effective sales tool, so is humor and Volvo has come up with a great advertising campaign for their automatic braking system.
To see a brief description about how this system works view the video below.