1975 Spanish Grand Prix
It was the 21st Spanish Grand Prix since the race was first held in 1913. It was the fourth, and last, Grand Prix to be held on the Montjuïc street circuit. The race was shortened to 29 of its scheduled 75 laps, a race distance of 109 kilometres. The race was won by German driver Jochen Mass driving a McLaren M23. It would be the only Formula One win of his career. Mass had just a second lead over the Lotus 72E of Belgian driver Jacky Ickx when the race was declared. Argentine racer Carlos Reutemann was declared third in his Brabham BT44B, a lap behind the race leaders after a penalty was given to Jean-Pierre Jarier. This was the final win by a German driver until Michael Schumacher won the 1992 Belgian Grand Prix.
Grand Prix motor racing
As early as October 1923, the idea of an automobile championship was discussed at the annual autumn conference of the AIACR (Association Internationale des Automobile Clubs Reconnus) in Paris. However, discussion centered on the increased interest in racing by manufacturers and holding the first European Grand Prix at Monza in 1923. The first World Championship took place in 1925, but it was for manufacturers only, consisting of four races of at least in length. The races that formed the first Constructors' Championship were the Indianapolis 500, the European Grand Prix, and the French and Italian Grands Prix. A European Championship, consisting of the major Grand Prix in a number of countries (named "Grandes Epreuves") was instituted for drivers in 1931, and was competed every year until the outbreak of World War II in 1939 with the exception of 1933 and 1934.