The 2001 Mercury Mountaineer is available as a 4-door, 5-seat sport utility. Starting at $27,655, the 2001 Mercury Mountaineer 4x2 is powered by a 4.0L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 22-mpg on the highway. The top of the line 2001MercuryMountaineerAWD , priced at $ 30,120 , is powered by a 5.0L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 14-mpg in the city and 19-mpg on the highway.