Kids, even if you failed your driver's permit test and borrow the car without asking, your parents can still ruin your fun with Ford's new MyKey feature. Owners of the 2010 Ford Focus, (aka mom and dad), can use the MyKey feature to put the breaks on teen drivers. When the MyKey is inserted into the ignition, the system reads the transponder chip in the key and immediately identifies the MyKey code, which enables certain default driving modes ... er, controls.