“I raced against Prost for a number of years in karting, before Senna, and he wasn’t even in the game. You’d just catch him, pass him and forget about it.
“Mansell was another, he never won a thing in karts either.
“But Senna was the most gifted I ever raced against. It was good to measure myself against him.
“He is a driver that comes along once in a lifetime, that one. People have said to me ‘Keep your eye out for the next Senna’.
“Well, you’ll be keeping your eye out for a long time before your find that, believe me.
“He was just the best driver, head and shoulders above the others.”