After the first sixty rounds, all the people thought Hamilton was going to win the world championship, but in the last 5, it started to rain and everything changed. Every cars changed theirs wheels to get to the finish.
In the last round, Vettel passed Hamilton and all the brassilian spectators were shouting. Hamilton was the sixth now and the champion would be Felipe Massa.
Felipe cross the finish line in the first place, but Glock, who was the 4th, did not change his wheels and he was driving very slowly, so Hamilton and Vettel passed him.
Hamilton was 5th now, so he get the right score and he won the World Championship at the end.