Unibody construction of Dodge 's Sprinter van/cab-and-chassis reduces its curb weight for improved cargo capacity. With 16-inch wheels, the cab-and-chassis GVWR jumps to 10,200 pounds. Best-in-class advantages that Dodge claims for the Sprinter include highest fuel economy at 25 mpg, most cargo capacity with 473 cu. ft., greatest payload at 4,824 pounds, lowest side step-in height and lowest load-floor height — both at 17 inches. The Mercedes-Benz I-5 turbodiesel (154 horsepower and 243 lbs.-ft. torque) requires oil changes only every 10,000 miles. It's available in three wheelbase choices up to 158 inches. Estimated list price: $27,000.