not police mustangs(I wouldn`t mind having one though), just regular ones(all between 1986-1993). Although the only differences between a SSP mustang and civilian mustangs are very minor(alt, tires/wheels,speedo, ect.)
I've had two, a '66 that I paid 500 dollars for when I was a kid and an '82. Had a '79 Capri too if you want to count that . Pretty car, ran like crap. Had the old Ford 4-cylinder engine in it that had something like 100 horsepower. I remember driving on 95 and having to keep in the slow lane because it's top speed going up hills would be right around 55.