Extreme Dimensions Carbon Fiber Fenders The Packard 300 was an automobile built and sold by the Packard Motor Car Company of Detroit, Michigan for model years 1951 and 1952. The 300 represented the upper mid-range Packard model, providing better appointments than the Packard 200 or the Packard 250 models. The premiere Packard offered during these years was the Packard Patrician 400.