I missed where VAG bought Rimac. Are you sure this is true? Here is an org chart for Rimac Bugatti, and AFAIK the ownership structure has not changed since:
https://www.rimac-automobili.com/media/press-releases/rimac-...
https://www.rimac-automobili.com/media/press-releases/rimac-...
And Porsche is spinning out of VW and becoming independent again:
https://capital.com/porsche-volkswagen-vw-demerger-spin-off
https://www.autoweek.com/news/green-cars/a36933399/did-porsc...
(answer is "yes" btw)
It is pure insanity in need of many flow charts.