thesandbender writes "Ford is set to release a management system that will restrict certain aspects of a car's performance based on which key is in the ignition. The speed is limited to 80, you can't turn off traction control, and you can't turn the stereo up to eleven. It's targeted at parents of teenagers and seems like a generally good idea, especially if you get a break on your insurance." The keys will be introduced with the 2010 Focus coupe and will quickly spread to Ford's entire lineup.