Check out this site... http://www.blueovalnews.com/ubb/ubbhtml/Forum50/HTML/002324.html ... It is a Crown Victoria (police) site that has a pic of a K5 with what looks like metal spikes added all around it. RICE K5! Those things are tree catchers! (no trash about being on a Ford site, my excuse is it's job related) Cruisin in my '73.