The 1999 Pontiac Grand Am is available as a 2-door, 5-seat coupe. Starting at $16,130, the 1999 Pontiac Grand Am SE Coupe is powered by a 2.4L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 22-mpg in the city and 30-mpg on the highway. The top of the line 1999PontiacGrand AmGT1 Sedan , priced at $ 21,090 , 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 28-mpg on the highway.