IDK. but having used Kodak films since the days of Kodacolor 32ASA, I'm totally convinced that 95% of the supposed "differences" in films are entirely down to the quality, or otherwise, of the processing and printing (or nowdays, scanning). Obviously there are grain and contrast differences in different speeds, but "consumer" film with proper processing can be amazing, while "pro" film with cheapo processing inevitably = crap.
In my recent experience, Kodak "Farbwelt 100" bought in Austria, Kodak Gold 100 from Italy, and Kodak Gold 200 and Kodak ColorPlus from the UK produce technically identical high-quality results, with quality processing. The respective cassettes are absolutely identical printed simple black on yellow "Kodak Color Negative film 100 (or 200) ASA", in English.
My point is, how much difference (if any) is there, and how much is marketing? Most marketing generally is hype, and it is naive to think that our hobby is exempt.