(http://media.il.edmunds-media.com/ford/ns/ford_ns_122910_196.jpg) An upgraded version of Ford's MyKey system will let Explorer and Taurus owners lock in top speed between 65 and 80 mph, and block explicit satellite radio content.
MyKey, Not Yours: Ford Lets Parents Block Radio Content, Set Speed at 65 (http://www.insideline.com:80/ford/explorer/mykey-not-yours-ford-lets-parents-block-radio-content-set-speed-at-65.html)