The iconic Porsche 917 of Jo Siffert and Brian Redman streaks down the Mulsanne straight pursued by the sister car of Pedro Rodriguez/ Leo Kinnunen and 2 of the rival Ferrari 512s of Vaccarella/Giunti and Merzario/Reggazoni at Le Mans in 1970.
Jaguar XJR-9 - Le Mans winner after 30 years of waiting
Porsche 956 / 962 - Le Mans 1985 to 1994. The Porsche 956/962 twins won the first and the last 24 Hours of Le Mans they were entered in, twelve years apart. I'm not sure there's ever been any other sports racing car that was as successful for as long as this masterpiece.