The Fiero was originally planned to have it's own proprietary suspension system, but it got scrapped for the parts bin stuff. I wonder if that was what was eventually to become the 88 suspension. I also found this interesting bit in the second link.
1985 Pontiac Fiero GT Info
Body Styles
2dr Coupe
Engine Types
4-cyl. 151cid/92hp EFI
6-cyl. 173cid/130hp FI
8-cyl. 379cid/130hp MFI OHV Diesel