In 1991, before his stellar F1 career, Michael Schumacher raced for Mercedes at Le Mans - and had a legitimate shot at winning the most prestigious endurance race in the World. Autosport Editor-in-Chief Kevin Turner narrates the story of this dramatic race, and explains how the lessons Schumacher learnt in these 900bhp cars shaped his career in F1, and assisted him in some of his most famous races.