FIA President Jean Todt says 400,000 fans attended the United States Grand Prix over the weekend, making it the most attended F1 event in history.
The previous best was the 2019 British Grand Prix, which saw 351,000 visitors take in Lewis Hamilton's victory for Mercedes. The 2019 Mexican Grand Prix slotted in just behind, with 345,000 people travelling to Mexico City.
Both those races now trail the 2021 United States Grand Prix, showing that F1's popularity in the United States continues to increase, thanks in part to Netflix's Drive to Survive series.
Don't expect to see Max Verstappen on it anytime soon though, as the Dutchman recently explained why he has no interest in being part of it.
F1 Podcast: Were Mercedes caught out by Red Bull's aggressive strategy call in Austin?
It's time for the latest episode of the RacingNews365 podcast, with F1 journalists Dieter Rencken, Thomas Maher and Mike Seymour discussing the tense strategy battle between Mercedes and Red Bull and much, much more from the United States Grand Prix.