No world championship has been easy for me.

I became number one just after the World Championships in India. I was very young then, and I remember it was just a great feeling, my first World Championship.

A world championship medal on the road is something that I'm missing from my CV.

I got to experience a world championship with some great teammates.

They were ridiculous times. After I won my world championship in 1976, I went to Japan.

My proudest moments are beating Ferrari for the World Championship in 1965, and working with Ford to win Le Mans in 1966 and 1967.