The 2000 Pontiac Montana is available as a 4-door, 5-seat passenger van. Starting at $24,350, the 2000 Pontiac Montana N16 Passenger 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 2000PontiacMontanaExtended Passenger , priced at $ 25,635 , 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.