The only information I can impart about the Mexico Mustangs back in the 60's is that the Mexicans made one hellava block by adding more nickel to the content of the metal, making the block a lot stronger and making it available to be bored to 0.60 over. I don't know that they actually had a factory to build Ford Mustangs from ground up. I think that is a myth. I have heard that they are building the old Volkswagen bugs though, but I have never seen one built in Mexico that I know of.