sentences:  On July 6, 1924 at Arpajon, France, Thomas set a new world land speed record when he drove a Delage at .On May 28, 1973, he returned to Indianapolis to drive his winning Delage in a series of parade laps, prior to the start of the 1973 Indianapolis 500.Although he did not drive the car himself, he did sit in the seat where the riding mechanic would sit.