String a tightrope across a tennis court and ask a circus performer to walk the walk, he might throw in a somersault or two for special effect. Thread the same piece of reinforced washing-line across Cheddar Gorge and he might throw a sickie. Same discipline, different challenge. This is an analogy often used by Stirling Moss to help lay people comprehend what separates the great from the good in a sporting context. In key moments, when the demand is at its highest, the greats put their foot down and still keep the car out of a wall.