Input (grade 13): The Champ Car World Series merged into the Indy Racing League IndyCar Series prior to the 2008 season, and Cosworth does not currently provide engines to any American open wheel racing series.
Output (grade 9): The Champ Car World Series merged into the Indy Racing League IndyCar Series prior to the 2008 season. Cosworth does not currently provide engines to any American open wheel racing series.