percentage of "local content" to gain import tariff (tax) concessions by using parts and components (such as interiors and upholstery) that were sourced from Australian manufacturers. AMI's first year of production resulted in 65 registrations for 1961. Registrations of the 1963 model continued into 1964 with a total of 21 Ambassadors registered for 1964. Although not documented by AMI records, it is concluded that 20 right-hand drive 1970 Ambassadors were fully imported from Kenosha, apparently 16 two-door hardtops and 4 four-door sedans. One possible reason for this was that it may have been a holding action while AMI was preparing for the assembly of the new 1970 Rebel. All were fitted with AMC's new V8 and automatic transmission with floor shift. The dash and instrument pack of the 1967 Ambassador, which had been converted and used in the RHD Ambassadors assembled for the U.S Postal Service, was thereafter used in all assembly kits for the Rebel and Matador and all factory-right hand drive Rebels, Matadors, and Ambassadors exported to the United Kingdom. Costa Rica Rambler vehicles were marketed in Costa Rica since 1959 through Purdy Motor. New local content regulations enacted during the 1960s effectively required vehicles sold in those markets to be assembled from knock-down kits. An assembly plant for Rambler and Toyota vehicles was established, ECASA, and the first Ramblers were produced in Costa Rica by the end of 1965. The company built Ambassadors and other AMC models through 1970, with Toyota increasing ownership of ECASA. Mexico American Motors' first-generation Ambassadors were exported to Mexico in the first half of 1958 and assembled locally in the second half of the same year and in 1959 by Planta Reo de México based in Monterrey, Nuevo León. The model was restricted to the four-door hardtop sedan. It was powered by the four-barrel V8 engine producing coupled to a three-speed automatic transmission. The model became the marque's top-of-the-line product alongside the three versions of the midsize Rambler and compact Rambler American models. However, low sales figures alongside a deteriorating relationship between AMC and Planta REO lead to the cancellation of the contract in the second half of 1959. American Motors once again exported its products into Mexico with a new local partner, Willys Mexicana. The agreement was signed in March 1960 and production began in Mexico City. This meant the discontinuation of the Ambassador line in Mexico as the new operation