Large amount (maybe most / all) US export 986 were built in Finland. For these cars the engines were assembled in Germany and shipped to Finland.
Other parts were done in a same manner like other global car company's factories - some parts made at the country of the actual car factory loction, but many parts made in variuos countries globally. For example inside the door cards protective moisture barrier (foam kind of) is made in France on my car that is built in Finland. Then again I have seen many parts made in Finland and Germany.
I guess this is similar like today as well on building global manufacturer cars....
Above is my observation and includes also what I saw on summer of 1998 as I toured the assembly line at Uusikaupunki Finland to see Boxters being built
