The 2003 Pontiac Aztek is available as a 4-door, 5-seat sport utility. Starting at $20,870, the 2003 Pontiac Aztek FWD is powered by a 3.4L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 26-mpg on the highway. The top of the line 2003PontiacAztekAWD , priced at $ 23,820 , is powered by a 3.4L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 26-mpg on the highway.