The Mustangs went downhill when they stopped putting the rollercam 5.0 V8's in them. The State Patrol still has a few of these on the road as "Interceptors" for catching hot rodders who think they have fast cars.
As for quality, I would still take an older Ford truck over any other make. I've owned 2 F150's, a 77 and a 71, and both of them went well beyond 200,000 miles before being retired. The 77 actually died a valiant death, earning second place in one of the local demolition derbies a couple years ago
