Why was removed from post the legendary Ferdinand Piech?

Sensational news of the resignation of Ferdinand Piech as chairman of the board of directors of the Volkswagen literally stunned the automotive world. Porsche family owns 51% of the group, and he was none other than the grandson of the founder of this group of Ferdinand Porsche after which got its name. And this legendary and venerable multi dismisses with incredible formulation - due to the loss of mutual trust.

With fast direct supervisor Ferdinand Piëch left the group in 2002, but remained the main supervisory board and the actual gray eminence automaker.

But here is the current head of VW, Martin Winterkorn, who himself Piech in 2007 promoted to the post to replace Pischetsrieder, it seems, was stronger than most 78-year-old broker.