There were two books published recently on the Aero in Brazil, co-authored by Jose Penteado Vignoli, a man I've never met but we've corresponded with each other for almost 35 years. He supplied me with the Brazilian production figures many years ago and is one of the leading authorities on the Brazilian Aeros. I have copies of both and, yes, they are written in Portuguese.
Only the 4-doors were built in Brazil, looking exactly like 1955's. 1960's retained the zigzag side moldings and the 1961 and '62's had straight moldings similar to the 1952-1954 Toledo-built Aeros.
The Brazilian Aero club is very active and they have a Facebook page as well.