This is a translation from a Swedish website:
QUOTE
What might this be for an Audi, then? Well, what is sometimes called the forerunner of Trabant, namely, IFA, or Zwickau AWZ P70. In Sweden, people thought that Audi had better cachet.
P70 was presented at the Leipzig Fair in 1955 as "the first series-built plastic car", manufactured by Automobil Werke Zwickau (AWZ) between 1955 and 1958. A Kombi came in 1956 followed by a coupe in 1957. A total of 36151 AWZ P70 were made. Because of the lack of steel sheet, they were manufactured from a material which is called duroplast. This is a type of thermosetting plastic closely related to bakelite . Duroplast was made from recycled surplus cotton from the Soviet Union, and phenolic resin, which was a by-product of the East German industry. Also the better-known Trabant was made of this material.
UNQUOTE