He probably meant to link to the Tatra 77, which some people say was the first aerodynamic production car. Though, I believe a dozen other cars also get that title, for varying definitions of aerodynamic.
I don’t doubt there are many cases of blatant copying in technology, but I am having trouble to see any connection between either Tatra and the cars discussed in the post. Also: the “Czechoslovakian” Tatra linked to was designed by an Austrian and a Hungarian.