Four-time winner of the Indy 500 and father of
Before enterting the big leagues of racing, he competed in sprint cars.
He became the third racer to win the Indianapolis 500 4 times.
He married Wanda Jesperson on April 22, 1958, and after their divorce in 1971, married Karen Sue Barnes on November 22, 1977.
His brother Bobby Unser was also a NASCAR competitor.