The 2006 Chevrolet Equinox is available as a 4-door, 5-seat sport utility. Starting at $21,400, the 2006 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 24-mpg on the highway. The top of the line 2006ChevroletEquinoxLT AWD , priced at $ 23,900 , is powered by a 3.4L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 23-mpg on the highway.