Despite some hope the withdrawn proposal for a merger between Fiat-Chrysler (FCA) and Renault could be revived if a way can be found to alleviate Renault's alliance partner Nissan's concerns over future stakeholdings and influence, the 20-year partnership was plunged into fresh crisis on Monday as the French automaker's demand for a greater say in Nissan's new governance system drew rare public censure by the Japanese firm.