My all-time driver hero. Colin Chapman called him a genius and said that he, Clark, did not know how good he really was.
Click the link for the article and video: The secret to Jim Clark's speed
Have a look at the following two frame captures from the video. Notice the white line in the centre of the road just behind Clark's car in the top pic. Now look where Stewart's car is at that same part of the corner. A completely different line and approach.