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.