The Porsche 917 first roared to life in 1969. It was engineered by Hans Mezger, who designed it specifically to dominate endurance racing. Porsche had one clear goal: to win the 24 Hours of Le Mans.

Porsche 959 “Speedster” will be sold by RM Sotheby’s next month in Milan. The open-top speed machine was built by Karl-Heinz ...