Strong doubts about objective testers!

The Auto Bild Sportcars published in tomorrow’s issue, the winter tire test (225/45/17). Was today with my tyre dealer and what I see: The new (complete) edition, which is supposed to be on sale only tomorrow, with a big advertising banner from Dunlop on the cover page: “Dunlop is the Auto Bild Sportcars test winner”. How can, if allegedly everything is so objective and the edition tomorrow (!!!) only appears in the trade, Dunlop then today already issues of this Ze If it is so objective, how does Dunlop know the test result (long) before the publication of the magazine? How can Dunlop, 1 day before the publication of the original magazine (without advertising banners), already distribute magazines with advertising banners? Slowly (could) one almost get the feeling of becoming quite vera…. from these (allegedly) objective tests. Is there (possibly) before that (possibly) before that. The test winner is already fixed and the test is written around it? Maybe there is also a very simple explanation, but a rather low taste remains.