Active Years | 1953, 1955, 1960, 1967, 1976–1978, 1989–1990, 2017, 2022–2023 (World Championship), 1977 (Shellsport International Series), 1953 (West German Championship), 1946–1947, 1952–1955, 1957, 1960, 1962, 1967, 1971–1973, 1976–1979, 1989–1990, 2017, 2022–2023 (overall) |