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.
European motorcycle Grand Prix
Between 1924 and 1948, the European Grand Prix was not a race in its own right but just an honorific title; one of the national Grands Prix was also designated as the European Grand Prix. The first race to be so named was the 1924 Nations Grand Prix, held at the Monza circuit in Italy. Until 1937, the winners of the race designated the European Grand Prix were awarded the title of European champion. In 1938, the European championship became decided over a series of races and the European Grand Prix designation was not used again until 1947, although no longer awarding the European championship title.