To be a racing driver it's essential you have very good eyesight, and that's especially relevant at night. Your senses are heightened, you're travelling over 200mph, you need to focus on that 110-metre braking point and you have to have absolute faith and commitment in your driving.

I don't do much driving - about 5,000-6,000 miles a year. And most of that is to the airport and to the racing circuits.

What I like is when you can hear the heart and soul of music and can feel the energy coming out of it, because that's what it's like when you drive.

I get moments where you slide and there's an adrenaline shoot, but the moment you scare yourself is the moment you give up. I think what probably scares me more, is that you're involved in something that is quite surreal and you have to be able to bring yourself back down to earth and that's where when you come home and your kids are just excited to have daddy home and tell you about their day, that's one of the greatest things to bring you back down to earth.

I clipped a Ferrari, hit the gravel trap at a fair old speed, which lifted the car up into the barrier, and then rolled a few times. I had no injuries or anything - I just had to wait for the marshals to right the car before I could get out.

I have been waiting to win a world championship since 1985. I've had three cracks at a world title - in karting, I finished third at Le Mans; that hurt because it was very close, but then in Formula One there wasn't really an opportunity to finally crack it, so it's third time lucky.

As a driver you enjoy winning races and, if you win in the easiest way possible, fine, but in reality we all remember the fights to the end, the nip-and-tuck stuff.