Biography: Jo Siffert was a Swiss Formula 1 driver, born on July 7, 1936, in Fribourg, Switzerland. Known for his fearless driving and success in both Formula 1 and endurance racing, he won two F1 Grand Prix races and achieved notable victories in sports car racing, including at the 24 Hours of Daytona and the Targa Florio. Siffert tragically passed away on October 24, 1971, in Brands Hatch, England, after a fatal crash during the World Championship Victory Race.