That appears to be a VEC body.
“For sale a 1948 Willys Jeep. V6 buick engine, Automatic Transmission. 33X12.5 BFG All Terrain tires in good shape. Used for work around the farm. Four wheel drive works good, Hi/Low transfer case. Heavy duty bumpers front and rear, with rear receiver hitch. Front disc brakes only, rear brakes do not exist. Fun vehicle to drive. Email or call 402-two 6 nine-five 6 zero 1.”