I am now curious about the wind deflectors that are mounted on the windshield pillars of my car and many others I see, Not sure of the official name for these so searches have not gotten anywhere on the subject for me. Anyway, I was under the impression that my car was original (1957 TR3). A friend just pointed out that Lexan or Plexi was not available in the 50's so these options were added later. Now I am wondering what is the story on these little deflectors. Are they factory parts or period option pieces? If so, what plastic were they made from? Is my friend correct?