I'm not totally sure... AUTO BILD has been accused in the past of being VW's Magazine, they also seem to be the only ones saying anything about BMW...
I'm also wondering if their move to get rid of Audi and Porsche R&D chiefs is a subtle admission that the cheat isn't just in Type EA 189. I mean why else would you axe these people if they weren't responsible... Thats some top level talent to be discarded as mere scapegoats... http://www.autoblog.com/2015/09/24/horn-hackenburg-hatz-fired-vw-diesel-scandal/