I hate to argue, but while you are correct, it was the 1990 prototype, it was built in 1989, that's why I posted the
VIN too.
"A prototype of the never-produced 1990 Fiero was displayed at the 20th Anniversary show in July 2003, at Fierorama 2005, at the Michigan show in 2006 and most recently at the 25th Anniversary Show in Pontiac, Michigan in 2008. Continued showing of the prototype may no longer be an option in the near future, as GM has taken to cutting funding to relieve the pressure of its financial woes.
Much of its design influence is apparent in the Fourth Generation Firebird. New engines were proposed for the 1990 model year, from the then new DOHC 190 bhp (142 kW) "Quad 4" 4 cylinder as a base engine to replace the 2.5 Iron Duke to a new 200+ bhp DOHC V-6 for the GT models. Even a 231 CID (3.8 L)
Buick Turbo V6 powered Fiero is rumored to have been seen at a test track. The single 1990 Fiero GT prototype had an early version of the upcoming DOHC V-6 that would be put into production in the Grand Prix and Lumina Z34 in the early 90's. This engine developed more than 200 bhp (150 kW)."