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
For the most part, races were run over a lengthy circuit of closed public roads, not purpose-built private tracks. This was true of the Le Mans circuit of the 1906 "Grand Prix", as well as the "Targa Florio" (run on of Sicilian roads), the German "Kaiserpreis" circuit in the Taunus mountains, and the French circuit at Dieppe (a mere ), used for the 1907 Grand Prix. The exceptions were the steeply banked egg-shaped near oval of Brooklands in England, completed in 1907, the Indianapolis Motor Speedway, first used in 1909 with the first Indianapolis 500-Mile Race in 1911, and the Autodromo Nazionale Monza, in Italy, opened in 1922.
In 1908, the United States of America became the first country outside France to host an automobile race using the name Grand Prix (or Grand Prize), run at Savannah. The first Grande Épreuve outside France was the 1921 Italian Grand Prix held at Montichiari. This was quickly followed by Belgium and Spain (in 1924), and later spread to other countries including Britain (1926). Strictly speaking, this still wasn't a formal championship, but a loose collection of races run to various rules. (A "formula" of rules had appeared just before World War I, finally based on engine size as well as weight, but it was not universally adopted.)