A top level VW committee met in Salzburg on Thursday to try to resolve a leadership crisis that has emerged after Piech publicly withdrew his confidence in Winterkorn, casting doubts about the CEO's future.
Piech was outnumbered 5:1 on the six-member supervisory board steering committee, the sources said, declining to be named because the matter is confidential.
VW said the panel would propose extending Winterkorn's contract at a board meeting next February.
(Reporting by Andreas Cremer and Jan Schwartz; editing by Thomas Atkins)
By Andreas Cremer and Jan Schwartz