The 2002 Pontiac Firebird is a 2-door, 4-seat Convertible, available in 5 trims, ranging from the Base Convertible to the Formula Coupe. Upon introduction, the $26,965 Base Convertible is equipped with a standard 3.8L, 6-cylinder, engine that achieves 19-mpg in the city and 30-mpg on the highway. an Automatic transmission is standard. The $25,995 Formula Coupe is equipped with a standard 5.7L, 8-cylinder, engine that achieves 18-mpg in the city and 26-mpg on the highway. an Automatic transmission is standard.