It was an easy choice to return with Lotus Renault GP as I have been impressed by the scope of the team's ambition.

Do you have any ambitions outside racing? My main ambition at the moment, whether inside or outside racing, is to become Formula 1 World Champion.

I'm happy, but there's nothing to jump around about.

I just love the American spirit of racing. It feels just great to get involved with that.

Be yourself. If you try to be someone else, it won't work. Whatever you do, you are not going to make everyone happy.

When I was a kid, I would watch the grands prix. Everyone dreamt of becoming a race driver, while I only started thinking about it when I was 18 or 19. Only at that age did I seriously start thinking about this job. Before then, I would change ideas from one second to the next.

I'm delighted to be coming back to Formula 1 after a two-year break, and I'm grateful to Lotus Renault GP for offering me this opportunity.