This was also the transitional time between the last South Bend Avantis and the first Youngstown Avantis. While at the MCACN show a few years back, as a member of the Avanti timeline, I found out 88 black coupe was a South Bend Avanti, because there were slight differences in the engine compartment with the Youngstown Avantis. There was also a slight difference @ the bottom of the cars as well. Many Ohio 88 Avantis had fog lights and "ground effects" to hide the frame. I am mostly convinced my "January 88 Youngstown, Ohio build date (according to door jamb sticker)" was a leftover 87 from South Bend they transported to Ohio with all the other stuff from the SB factory.