[Ahnuld]

"Starting with about 20 models for 2009, the service will be able to slowly halt a car that is reported stolen, and the radio may even speak up and tell the thief to pull over because police are watching.
OnStar already finds 700 to 800 cars per month using the global positioning system. With the new technology, which OnStar President Chet Huber said GM will apply to the rest of its lineup in future years, OnStar would call police and tell them a stolen car's whereabouts.
Then, if officers see the car in motion and judge it can be stopped safely, they can tell OnStar operators, who will send the car a signal via cell phone to slow it to a halt"

http://news.yahoo.com/s/ap/20071009/..._te/stop_thief

Very Cool!!!