How much to ask for 1987 Pontiac Fiero needs belt tensioner, serpentine belt, a/c compressor. Rust underneath. Other than that good.

Hagerty values a really good condition one at around 3,600. Concourse at around 8,500. An average one around 1,800. Rust is a real killer for value. Most of those valuation sites skew much higher than reality. See what other 87 Fiero's list for on Craiglist, Hemmings, or on various Pontiac forums to get a realistic value. My guess would be 1,000 or under. Base model with rust is not going to attract a lot of buyers.

See if you can get $1000 out of it.