Wheldon tells IndyCar that Jackie Stewart death should prompt change . English driver Wheldon was killed in a crash in U.S. on those days . Stewart questioned whether drivers of varying experience should race together . The three -time F1 champion has been a longtime safety campaigner .
Jackie Stewart tells CNN that Dan Wheldon 's death should prompt change . English driver Wheldon was killed in a crash in Las Vegas on Sunday . Stewart questioned whether drivers of varying experience should race together . The three-time F1 champion has been a longtime safety campaigner .