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From then on, all CJ Jeeps consistently had a separate body and frame, rigid live axles with leaf springs both front and rear, a tapering nose design with flared fenders, and a fold-flat windshield, and could be driven without doors. In 1944, Willys-Overland, one of the two main manufacturers of the World War II military Jeep, built the first prototypes for a commercial version – the CJ, short for "civilian Jeep". The 1945 Willys Jeep was the world's first mass-produced civilian four-wheel drive car.
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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 to 1986.
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