Mercedes with BMW engines

Everybody knows that BMW is producing the most powerful and performing engines from the entire world, and to salute this performance, the concurrent mark director, Dieter Zetsche declared that the Mercedes mark is open to a eventual collaboration with the Bavarians from the BMW. Zesche declared that Mercedes could collaborate with BMW if they will get to consent, financially speaking, and if they will build a viable strategy for both marks. In an interview realized by Der Spiegel, Zetsche told that the same collaboration is happening between Porsche and Volkswagen. The model named is the successful SUV, Cayenne, which is building starting from the VW Touareg and it is using engines produced by Volkswagen.
According to a report, Daimler is in some discussion with big car marks, but for now there is no final decision.