Porsche had no citation when Toyota production managers saved Porsche from bankruptcy.
Interesting that you should use this particular example, for that was precisely the subject of perhaps the most widely-viewed
Kaizen Factor story I've written (thanks to
Jalopnik picking up the story):
Porsche: Toyota's star pupil? I wrote that almost a decade ago, and it was essentially a commentary piece on a
Bloomberg Businessweek story that I referenced, cited and credited extensively.
Granted, sometimes major automakers tend to be guarded about outside collaborations, such as italian designer Leonardo Fioravanti's contributions to the original Lexus LFA Concept and the final Toyota Celica, or Pininfarina's to the Honda S2000, but, as ssun30, Ian Schmidt and I have noted, where is the link or article that supports the notion that the Porsche Taycan is a Rimac under the skin?