I also incorrectly purchased the newer car from Brand Central. Then I purchased the correct 1992 car, which I could only find in the used car dealership, and it completed the menu as expected
Yes, we know that (read the replies again). And now you know that too.... Yay!!
But what we don't know is, did you buy the correct one yet, and did it fulfill the requirement in the Extra Menu? (especially since the title of this thread suggests it "don't work")