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 always sleep really well, particularly before a race, when the adrenaline's pumping.

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.

I think as a 20-year-old you expect life to always be easy. You get given a good hand and the chance to race in Formula One. You think the driver can make the difference, can make up for everything else within the team. But that is not the case. You are racing in such a competitive sport so that doesn't happen.

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.

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 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.