At the 1970 Le Mans, had it not been for some rain-soaked electrics, one of Porsche’s long tailed 917s may well have won. Further refinements were made in anticipation of a return to la Sarthe in…

Although the Kurzheck configuration had transformed the Porsche 917 from an unstable and ill-handling pig, the trade off was a big drop in top speed; these short tailed variants topped out at…