I live in Toledo but work near Dearborn and they are all over. Not sure if they had to crash test the GT 350 separate from the other trim levels, but I'm sure some have been scrapped.
They most likely are pre production GT 350 seats that grew legs and walked away or fell off the back of a truck. In 2001 a friend of mine bought a 2003 Cobra OEM blower. No one believe him a Cobra was coming from the factory with a blower and what do you know... It was identical to the...