High Quality Content by WIKIPEDIA articles! The 1975 Formula One season was the 26th season of FIA Formula One motor racing. It featured the 1975 World Championship of F1 Drivers and the 1975 International Cup for F1 Manufacturers which were contested concurrently from January 12 to October 5 over fourteen races. The season also included three non-championship Formula One races and a nine race South African Formula One Championship.