Meanwhile, Indy takes an interesting turn, reminiscent of the problems of F1 and their possible solution:
https://www.autosport.com/indycar/news/133509/dixon-indycar-facing-biggest-change-in-years
There is the possibility of a few standard parts to reduce costs, but hopefully F1 won't approach IndyCar levels of standardisation. If they do I won't be working in the industry, nor will I be watching it.
I came across this article today that state that F1 race attendance figures are up this year: