In the old Michel Vaillant comics the f1 and indy cars seem to be interchangeable, they compete in each other’s championships
Not sure if true given that it’s fiction, but they do seem to be based on reality
Not sure if true given that it’s fiction, but they do seem to be based on reality
I'd say that the rift become apparent in '94, after the safety changes introduced due to Senna's Death and the massive shift in pilot training brought by Michael Schumacher.
Some Indy features (refueling, changing tires even if they didn't have a puncture, safety cars) got adopted by F1 through the 1980s, specially as F1 started to lose audience to the American series in the early 1990s.