The 2004 Pontiac Grand Am is available as a 4-door, 5-seat sedan. Starting at $17,070, the 2004 Pontiac Grand Am SE Sedan is powered by a 2.2L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 26-mpg in the city and 37-mpg on the highway. The top of the line 2004PontiacGrand AmGT Sedan , priced at $ 22,280 , is powered by a 3.4L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 20-mpg in the city and 29-mpg on the highway.