robblatt.com
this has actually been going on as early as 1996.
from http://www.seniormag.com/headlines/blackboxcars.htm
In the United States, there are approximately 190 million drivers. If you are driving a car manufactured by GM or Saturn, you could be carrying around an event data recorder (EDR) and not even know it. The EDR senses various conditions in and around the vehicle and that can then be obtained by various individuals for various purposes.