Chase Carey has hit back at his Formula E counterpart, insisting that Formula 1 will remain the pinnacle of motorsport.
Formula E chief Alejandro Agag said recently that he thinks the all-electric series will take over from F1 within a decade or two.
"I'm glad he has a crystal ball," F1 chief executive Carey told media outlets including Germany's Sport Bild.
"Formula E is not our competitor. It represents something that matters to all of us - the environment - but I see it as more of a street party than a sports event.
"People who've been there say they had fun because there was music and good food, but formula one is watched worldwide and we now have the opportunity to take it to a new level.
"And I believe other series can help us, because they create interest. But the top series is and remains Formula 1."
The 2018 F1 calendar kicks off with the Australian Grand Prix on March 25.