had several priorities above offering a top-end luxury full-size car line. Aside from offering the already existing Jeep line, Willys Mexicana focused efforts on the compact Rambler American, which obtained a generation change just the next year, meaning a complete retooling of the Vallejo plant. In 1962, legal and industrial requirements in the country became stronger with the auto industry integration decree issued by the president Adolfo López Mateos in 1962. Among its mandates, it fully banned the importation of automobile engines. Willys Mexicana began building its own engine plant, which was achieved in November 1964. Once the Rambler American was consolidated in the Mexican market, Willys Mexicana opted to expand the product line by introducing the brand-new second-generation Rambler Classic midsize model as a larger luxury counterpart to the economy compact American. Also in 1963, due to problems with WM's parent company (the SOMEX bank) as well as further requirements of the government auto industry decree, Willys Mexicana was reorganized into an entirely new company with expanded capital and direct investment from the Mexican government, Kaiser Willys, and American Motors. This resulted in the formation of Vehiculos Automotores Mexicanos (VAM). After the corporate transition process between 1960 and 1964 concluded, in which the Rambler marque under VAM surpassed the commercial results of its local predecessors Armadora Mexicana and Planta REO combined between 1950 and 1959, the company opted not to offer the Ambassador model. The Mexican market of the era was still relatively small and since the Ambassador shared mostly the same styling as the contemporary midsize model of the company, it was considered that internal competition would affect the sales of a simultaneous Rambler Classic/Ambassador line-up. Unlike the United States, which had a much larger and more diverse market for two different car lines with the same styling, AMC could offer a strong difference between both models with the exclusive V8 engine for the Ambassador and the Classic being restricted to six-cylinder engines. This advantage did not exist in Mexico since VAM could only produce six-cylinder engines in its Lerma plant and V8 engines could not be imported from AMC because of the 1962 decree. Instead, VAM opted to use the Rambler Classic as its most luxurious and flagship model, giving it the same treatment AMC put in the Ambassador model in the US and Canada. This would be passed on to the subsequent equivalent Rebel and Matador