The 2006 GMC Savana is available as a 3-door, 2-seat cargo van. Starting at $24,375, the 2006 GMC Savana LS RWD G1500 Passenger is powered by a 4.3L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 19-mpg on the highway. The top of the line 2006GMCSavanaLT RWD G2500 Passenger HD , priced at $ 26,185 , is powered by a 4.8L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated