I think that texting and driving is a 100 percent no-go. I think it should be banned everywhere because you cannot be focused on looking ahead, in the mirrors, being aware of what's around you, and to type on a small keyboard and a small screen.

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.

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.

I try to get away from the pits as quickly as I can. I speak to my engineer when I get out of the car, usually there's some press to do, then I will go off and have a shower and get my dry, clean overalls and clothing on. I'll have a massage, stretch and something to eat. I don't sleep, but I try to close my eyes for a while.

The main factors in terms of how tiring a season can be are governed by the number of races and the length of time between the first and the last.

My very first car was a grey Alfa Romeo Alfasud, which I got in 1987. But, in our family, all cars were for sale - so they might be there in the morning and were gone at night. In the mid-90s, I joined Porsche and the Carrera was the car, and the Carrera 4S was the one they gave me. As a wee boy from Dumfries, I couldn't believe it.

It is hard to be number one, and it is even harder to stay there because everyone is trying to knock you off the top.