AHS class of '88 here. Many of the fastest and the slowest cars in my high school parking lot were new Mustangs. The slow ones were 2.3 liter automatic notchbacks bought by daddies for their beloved daughters. The fast ones were 5.0 GT 5-speed fastbacks driven by pot dealers.
There were also more first-generation Mustangs than it makes sense even now in terms of Ford durability. One girl won a restored '66 GT convertible with the through-pipes in the rear valence panels from a radio contest. Several more had early Mustangs that were hand-me-downs. When I went away to college, I had a roommate with a Mach 1 in a barn back home that he thought commanded respect. I’ll concede that I couldn’t fathom why anyone might care about a Mach 1 Mustang then, just as all Fords bore me now.