"One of the great driving forces behind Jim Clark was his curiosity about motor cars and his fascination with them. When I told him last year of a friend of mine who owned a D-type Jaguar his eyes lit up and he asked if I would find out if he could drive the car. My friend is a very wealthy man who owns a number of racing cars, and he even has his own racing track on his estate where he spends the weekends with his cars. He does a little bit of hill climbing too. His son of fourteen has a little Formula 4 racing car in which he goes like a rocket, and Pierre has told me that while because of his business he himself could not become a full-time racing driver, he wants his son to become World Champion
So, What kind of racing car is a Formula 4? I've never heard anything about it. I'd be grateful if some of you tell me.
And about that Crombac's friend, Is he Pierre Bardinon or someone else?? and what happened with his son, Did he really become a professional driver?