The Triple Crown: victory at the Monaco Grand Prix, the 24 Hours of Le Mans, and the Indianapolis 500. It spans the full motor racing cosmos, on asphalt at least, comprising a twisty sprint, a punishing endurance challenge, and a flat-out oval. All three are steeped in history. Many have attempted it, but only one driver and one team has ever scaled all three peaks—Britain’s Graham Hill and McLaren. There are very few true grails left in motorsport.