The 2005 Chevrolet Equinox is available as a 4-door, 5-seat sport utility. Starting at $21,320, the 2005 Chevrolet Equinox LS 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 25-mpg on the highway. The top of the line 2005ChevroletEquinoxLT AWD , priced at $ 24,660 , 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 25-mpg on the highway.