In 2005, he won the Formula Atlantic class at the SCCA Runoffs and finished fourth in Star Mazda Series standings. He moved to a full-time ride in the Champ Car Atlantic Series in 2006, where he won five races and finished second in the season standings. He also drove in the Indy Pro Series event on the Indianapolis Motor Speedway road course in conjunction with the 2006 United States Grand Prix and finished second. SpeedTV reported in August 2006 that Rahal would drive for &lt;a href="Newman/Haas%20Racing"&gt;Newman/Haas Racing&lt;/a&gt; in the Champ Car World Series in 2007.