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.
1974 Spanish Grand Prix
The Spanish Grand Prix marked the debuts of the Trojan and Amon teams, as well as Liechtensteiner driver Rikky von Opel. Jorge de Bagration, a local driver of Georgian royal descent, was to have taken part in the race, driving a Surtees TS16 with sponsorship from department store El Corte Inglés, but missed out due to a very unusual set of circumstances: the outgoing president of the Spanish Motor Sport Federation cleared his office, taking with him all paper files including the official entry list for the race; a replacement list was hurriedly drawn up that omitted de Bagration, whose sponsorship had just fallen through. Despite this, de Bagration should still have been included on the replacement list, regardless whether or not he would have been able to race.