Independent · Source-led · American performance history Issue 01 · 1951–2023
American Muscle Car Facts

Showroom arguments.
Race-bred answers.

General Motors option code

Y89  — Tenth Anniversary Trans Am

Y89 (Tenth Anniversary Trans Am): a General Motors factory option code recorded on 1 model across 1979, with installs and price where a source states them.

1 model · 1 model year · 1 source

Overhead view of a black 1979 Trans Am with its large gold hood bird and T-tops, a woman at the wheel
1979 Pontiac Firebird Trans Am with the restyled nose and full-width taillamps (1979 Pontiac brochure)

Every sourced appearance

Year Model As named that year Price Installs
1979 Pontiac Firebird and Trans Am Tenth Anniversary Trans Am RPO Unknown 7,500 Reported

Every row traces to the source it links from on that model's own year page; this table only collects them in one place.