四轮驱动
Several models of carryall wagons began to be offered with four-wheel drive, beginning in 1949 when the Willys Jeep Station Wagon introduced the option of four-wheel drive. Four-wheel drive versions of the Chevrolet Suburban were introduced for 1955, followed by the International Harvester Travelall in 1956 (credited as being the first full-size SUV) and the Power Wagon Town Wagon in 1957.