Well not many of us knew that black boxes existed in cars, but GM and Ford had put them in almost all their vehicles 2005. The black boxes in car serve a similar function to the ones found on airplanes and measure things such as acceleration, speed, air bag deployment and more.
Along with the government forcing automakers to make the black boxes stronger and more efficient, they are also being forced to tell consumers that their new car has a black box inside it. Not all automakers are being forced to put black boxes inside their cars.
Source: USA Today