The 2000 Pontiac Firebird is available as a 2-door, 4-seat coupe. Starting at $25,310, the 2000 Pontiac Firebird Base Convertible is powered by a 3.8L , 6 -cylinder engine mated to a manual transmission that returns an EPA estimated 19-mpg in the city and 30-mpg on the highway. The top of the line 2000PontiacFirebirdTrans Am Coupe , priced at $ 26,980 , is powered by a 5.7L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 25-mpg on the highway.