Over the coming weeks, we’ll be showcasing the 4 BRM Trophies currently on display at the Silverstone Interactive Museum – read more about the trophy move here. Silverstone Circuit 14th September, 1957 On the 14th September, 1957, the 9th BRDC International Trophy was held at the Silverstone Circuit, Northamptonshire. The race was run over two 15 lap heats and a 35 lap final, over a distance of 4.71 km. Thanks to decisive