"For a global automobile company such as Volkswagen, formula one is always a topic," Stuck, who contested grands prix as a driver in the 70s, told the German language newspaper Vorarlberger Nachrichten.
Adding that part of his role is to communicate with "powerful" figures including Max Mosley and Bernie Ecclestone, Stuck explained: "An entry within the next three years is however not realistic. There are still uncertainties in the regulations -- (like) the engine freeze."