Ep.4 - Military Vehicles Through the Ages with IMVG - CJ-3B 'Jeep' The 'Jeep' CJ models are a series and a range of small, open-bodied off-road vehicles and compact pickup trucks, built and sold by several successive incarnations of the Jeep automobile marque from 1945 through 1986. The 1945 Willys 'Universal Jeep' was the world's first mass-produced civilian four-wheel drive car. In 1944, Willys-Overland, the primary manufacturer of the World War II military Jeep, built prototypes for a commerc