That account of collusion sounds like balls. A cartel that decides on the maximum speed at which a soft top opens? Oh lordy! Manufacturers need to collaborate on product development these days because the return on capital is so poor if they reinvent everything individually. As for VW, if I remember rightly they copped to Dieselgate pretty quickly once accused. They're the only one to have admitted wrongdoing I think. Some others are accused but continue to deny fault, possibly correctly, possibly not.