When you're in a car which can win every race, or fight for a win every race, that is pressure.

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.

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.

When I was in Japan with my girlfriend Jessica, she would have had acupuncture every day if she could. I can just about stomach going to a chiropractor and I visited a talented one when I was there, but when he tried a needle on me, it was horrible. My muscles tightened and it didn't work at all.

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.

I think fans of the sport have a good understanding now of how fit Formula One drivers need to be.

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.