The Ferrari 250 GTO chassis 3809GT, sold to the Swiss driver Kalman von Csazy in July 1962, had an intense racing career. In fact, Von Csazy used it in many races, even of world importance, between 1962 and 1963: 1000km of Montlhéry, 1000km of Nurburgring, Targa Florio. In 1964 the 3809GT was sold to another Swiss driver, Pierre Sudan, who used it mainly in hillclimbs.