, the team's records include 15 World Drivers Championship titles ( 1952 , 1953 , 1956 , 1958 , 1961 , 1964 , 1975 , 1977 , 1979 , 2000 , 2001 , 2002 , 2003 , 2004 and 2007 ) 15 World Constructors Championship titles ( 1961 , 1964 ,