The Porsche 936/76 aka the Black Widow was the successor to the 908/03 and the 917. Powered by a 2.1-litre single-turbo flat-6 to fit within the 3-litre class, it produced over 520hp. In a car weighing just 700kg/1,540lb, that was enough to secure three Le Mans victories ('76, '77, '81) for the 936.