If you are talking about the 1982 - 1993 Special Serivce Mustangs you might check out the Mustang Special Service Registry (EVOOA) site. It is an excellent source of information. The following is a link, and it gives the history of the earlier Special Service Mustangs.
Bearing that in mind NEVER drive through Kennesaw, Georgia. They've got a white GT just like the KHP's cars.
I've been pulled by him before, and he was so impressed that he asked for my autograph. That was in a '92 LX.......I might make him use a little more gas NOW !! :s6: