Willys-Overland was eager to add a more "car-like" vehicle to the Jeep lineup and in April 1948 introduced the Jeepster, a two door sport phaeton sharing the 2WD running gear and much of the sheet metal of the station wagon.
Unlike the wagon, the Jeepster never gained 4WD. In 1949 it did get, as an option, the new 148 c.i.d. "Lightning" six-cylinder, which provided nine more horses and twelve more pounds of torque.
After sales of nearly 20,000 units, the Jeepster was discontinued in favor of the new Aero Willys sedans.
Source: Walter P. Chrysler Museum