The sport utility market continues to expand despite higher than normal gas prices. The reason? Because, these do-almost-everything-vehicles provide just what consumers want. Sure, sales are down right now, but they will recover as more economical vehicles enter the mix. SUVs carry people, haul stuff, pull stuff, can go off-roading [okay, maybe not the Equinox], provide superior handling than many cars, etc. Fortunately, not all are gas guzzlers either. Chevrolet