Here around Detroit you can find a lot of deals that are "too good to be true" and are obviously parts from a stolen car. I was even asked by my stepbrothers 17 year old friend if I wanted a good deal on a hot supercharger for a Mustang.
'Freakin idiot. He was probably looking at mine with his mouth watering.
Basically I believe Mustangs are mainly stolen by young punks looking for free parts. Those imports listed earlier are stolen because of their expensive import replacement parts. Not because they have a set of Welds on them, aluminum heads, and an S-trim.
