The F1 teams are testing their 2026 cars at the Barcelona track this week. But why is the action not open to the public?

NTT INDYCAR SERIES testing is limited to save teams money, so drivers and crews must make the most of every minute in the pits and on track to gather valuable data.

"We've halted many years ago, but with others doing testing I think it's appropriate to do so," the president told reporters aboard Air Force One. Experts say that the resumption of testing would be a ...