Sport Suspensioon usually was the Mach 1 setup on a non- Mach car, sway bars staggered shocks. My Dad purchased a 73 with Sport Suspension in 1973. As for your other questions. Ford did spring specials to boost sales I know in 71 they did Mach 1 treatment on coupes and in 72 they did the full chrome surround front like this with sport mirrors, and NASA hood. I passed on a 72 Spring Special coupe with Q Code the guy siad it was a Mach 1 as that is what he was told by the dealership in 72 because it had the scooped hood. He wanted $3500 and the floors were gone. Every panel had a dent and the front hood lip was rusted out the chrome trim almost fell off when I raised the hood. Amazingly the engine compartment still had all the stickers on the firewall and the chrome lid cj air cleaner was perfect.