The Jeep Grand Cherokee (ZJ) is the first generation of the Jeep Grand Cherokeesport utility vehicle. Introduced in 1992 for the 1993 model year, development of the ZJ Grand Cherokee started under American Motors Corporation (AMC) as a mid-sized successor to the compact Jeep Cherokee (XJ) intended to replace both it and the aging Jeep Wagoneer (SJ) and was continued after the company was acquired by Chrysler in 1987. Export models produced at the plant in Graz, Austria, were given the vehicle designation of "ZG".     In the early 1990s, Dodge planned a midsize replacement for the Dodge Ramchargerfull-size, truck-based SUV, which had been in production since the late 1970s. An unnamed "Dodge ZJ" prototype was manufactured that was similar in style to the 1989 Jeep Concept 1, but featured a unique front end with the Dodge "Cross-Hair" front grille, slimmer front headlamps, and unique front and rear bumpers and body side cladding. [3]However, prior to the 1992 introduction of the all-new 1993 Jeep Grand Cherokee ZJ, the project was cancelled, and the replacement to the Ramcharger would not arrive until the 1998 model year as the Dodge Durango, based on the midsize Dodge Dakotapickup truck.