The Mustang SSP stands for “Special Service Package” and was a special edition Mustang created after a special project for the California Highway Patrol in 1982. In the early 1980s, the concern Early in the year, the CHP reached out to Ford to test the Mustang as high-speed enforcement vehicles. After a rigorous 18 month test of the 1979 Chevrolet Camaro, the California Highway Patrol chose not to utilize the Camaro as part of their fleet and make the Ford Mustang police car official #latemodelr