He was drafted, for the Vietnam War, but got turned down because he had a bad knee.
In 1998, he retired from competitive driving.
He owns a Mercedes-Benz dealership in Wexford Pennsylvania.
In 2004, his team won the Indianapolis 500 with a car driven by Buddy Rice.
He has four children; Michaela, Jarrad, Graham, and Samantha.
In 1987, he won th 12 Hours of Sebring a 12 hour endurance race at Sebring Raceway in Florida.
He won three CART championships, in 1986, 1987 and 1992.
In 2004, he was inducted in the Motorsports Hall of Fame of America.
He was the interim President and CEO of CART for six months during the 2000 season.
He was inducted into the International Motorsports Hall of Fame in 1994.
He attened Denison University, a private liberal arts and sciences college in Granville, Ohio, where he majored in history.
In 1981, he won the 24 Hours of Daytona.(a 24 hour race at Daytona International Speedway)
He is co-owner of Rahal Letterman Racing, with David Letterman.
He currently lives in New Albany, Ohio.(as of 2006)
He won the 1986 Indianapolis 500.