From Fandom:
The '80s Firebird was a particularly long-running Hot Wheels casting, introduced in 1983 and last released in 2016. It was based on the third generation Pontiac Firebird, produced from 1982 to 1991.
A successor casting known as the '84 Pontiac Firebird, designed by Brendon Vetuskey, was introduced in 2020 and touted as a replacement for the '80s Firebird casting. The casting was given a specific model year, better detailing and a new T-top.