Being world champion is 'totally amazing'



JENSON BUTTON:
"It's really amazing. After the last few races I've had this makes up for it. It was a totally awesome race, I'm world champion! It's 21 years since I first raced a kart. I love winning, I never expected to be world champion in F1, because you think racing drivers in F1 are different from you. But I did it today."