Interesting article, thanks for posting. I wonder how many of those 66 Mustangs were Fastbacks or which part of the country they were from. They are notorious for corrosion. Anything past 1972 is a hard sell too unless they were limited production or had great body lines. I am not sure if some of these cars will ever demand high prices but time will tell. The mid 70’s to mid 80’s was generally not too kind to car designs.