Hold on! Let's back up before well-intentioned fiction becomes accepted fact. Industrias Kaiser Argentina and Willys Overland do Brasil were separate entities administered separately. IKA received the tooling set for the 1954 Kaiser Manhattan 4-door sedan and went on to produce a largely identical IKA Carabela (Caravelle) for some years thereafter. W0B, in turn, received the Willys Aero/Ace/Lark 4-door tooling set and, adding 2.6L and later 3.0L F-head I6 engines, produced the Aero Willys 2600 and Itamaraty 3000 over the time frame you specify. WOB also took the Willys Universal tooling set and produced the Willys Rural, first in original form then later modified by Brooks Stevens, well into the 1970s as a Ford Rural. The '63 Aero Willys shown in your picture on snowy terrain was a prototype, perhaps even a scale model or mockup. In production, grille and wheel covers differed, and the hood ornament went away. To Mike's comment below, production wheel trim featured a small cap over a silver-painted, slotted steel wheel. Nothing like Corvair!
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