But there's plenty that Roger Penske, owner of the Indianapolis Motor Speedway and the IndyCar Series, would indeed like to forget. Penske also owns the Team Penske IndyCar team, which competes in the series he owns at the track he owns,

Team Penske was caught with an illegal part on its cars, leading to a series of realizations that raised questions about officiating.

Two Penske favorites and former champions will start at the back Sunday in the Indy 500 after a violation. Here's what you need to know.