To understand the intensity of driving an F1 car, you have to be in it. When you're driving a 750hp machine at 320km/h, the noise and the vibrations are incredible. The G-force when you take big corners is like someone trying to rip your head off. You hit the brakes, and it feels as if the skin is being pulled off your body.
It doesn't matter how much money you've got, or how many connections, there's always something you want that's out of reach.
To understand the intensity of driving an F1 car, you have to be in it.
I've spent as much as 30 grand on a watch but it's not about flaunting my wealth. I don't have many extravagances but watches are my biggest one. I must have 30 of them now. I've been collecting since the age of nine, when I won a black TAG in a karting event.
My school reports always used to point out that my concentration levels were appalling. I never listened in class because I was always daydreaming about racing. I never thought for a moment about doing anything else. There was no guarantee that I'd make a career in it but I never had any plan B.
It doesn't matter who wins if I don't. I only care if I win. I'm jealous of anyone else who wins.
You look back and you remember the good, the bad and the ugly
I always think I should try to get to bed early, but then I can't stop myself from watching telly and fiddling around on the net.
When you're in a car which can win every race, or fight for a win every race, that is pressure.
It is such a special feeling to win a grand prix.
For me, triathlons were something that was down to me and my fitness. Now, I really enjoy the pain in the triathlon of chasing someone down. It's a bit like chasing down Nico Rosberg in the last few laps at Silverstone - it makes you feel alive.
I like old tunes when I'm driving. They're fun and uplifting. Billy Ocean, that kind of thing.
My time at Honda was amazing. Some of my best times in Formula One, actually. I might not have won races, just one race, but I had a lot of fun.
We all drive differently and have different styles. For me I need a car I can develop beneath me and feel comfortable in. If the car feels neutral and unbalanced it doesn't work for me.
The fast, flowing parts, the high-speed corners, that's where a Formula One car is at its best - changes of direction, pulling high g-forces left and right.
If I ever have a son, and if he wants to follow in my footsteps in Formula 1, my main responsibility will be to point out some of the negatives.
A lot of people think Formula One isn't a sport because everyone drives a car when they go to work in the morning. But we're pulling up to six G on a corner or during breaking, which is almost like being a fighter pilot. So we have to do a lot of work on our neck muscles.
When it comes to my racing career I'm very driven and very selfish. People who are around me at races will know that I'm a different person here than in my personal life. I completely blank people at races. I need to be focused. I'm rude.
I always sleep really well, particularly before a race, when the adrenaline's pumping.
Resting for me is fitness training.
I felt confident at 24, but I am a better driver now.
My father did everything for me. He was awesome.
In the car and in front of the camera I tend to be very calm but behind the scenes I can get fired up and passionate, I just don't see the need to shout my mouth off in public.
When I do retire, I know for a fact that I'll never be able to replace the incredible feeling I get when I'm driving an F1 car.
I haven't got the yacht any more. The cost of running it was crazy. But it was so much fun while I had it. I don't regret it.
