Onofre Agustín Marimón was a racing driver from Zárate, Buenos Aires, Argentina. He participated in 11 Formula One World Championship Grands Prix, debuting on 1 July 1951. He achieved two podiums, and scored a total of 8 1⁄7 championship points.

The 1954 German Grand Prix was a Formula One motor race held at Nürburgring on 1 August 1954. It was race 6 of 9 in the 1954 World Championship of Drivers. It was the 17th German Grand Prix since the race was first held in 1926 and the 16th to be held at the Nürburgring complex of circuits. The race was won by 1951 world champion, Argentine driver Juan Manuel Fangio driving a Mercedes-Benz W196. Ferrari 625 drivers Mike Hawthorn and Maurice Trintignant finished second and third for Scuderia Ferrari.