What are the key differences between Formula 1 and IndyCar, the two leading single-seater series in the world?

Roger Penske sat down with Fox to talk about his team's rules violations during Indy 500 qualifying, a conflict of interest, last year's winning car and more.

Scott McLaughlin defended team owner Roger Penske and said he is more motivated than ever to win the Indianapolis 500 after a ...

Penske drivers Josef Newgarden and Will Power have been penalized in an Indy 500 cheating scandal for altering a car's attenuator. What's an attenuator?