... Elektron, a magnesium alloy; these cars ran (with successes) at Le Mans, the Mille Miglia, and other world-class race events in ... auto racing history, in terms of human casualties, at the Le Mans race.) Porsche's all-out quest to decrease the weight ... of magnesium frames in the famous 917/053 that won Le Mans in 1971, and still holds the absolute distance record. The ...