The Volkswagen-owned firm held a conference in Barcelona on Tuesday night that was attended by Seat's marketing directors in key markets.
Sources close to Seat said the conference would address potential cost-cutting measures and resolve conflict issues that could arise from a WPP acquisition of Cordiant.
WPP creative networks, including Ogilvy & Mather and Red Cell, already service car clients such as Ford and Fiat. One resolution to the conflict issue would be a decision by WPP chief executive Sir Martin Sorrell to leave Bates intact. Mark McKenna, Seat's UK marketing chief, was unavailable for comment.
Key Bates international clients British American Tobacco and Pfizer are understood to have approved a WPP takeover.