The 22-year-old McLaren driver won his second race in a row in the United States to increase his championship lead to ten points over his Spanish team-mate Fernando Alonso and has finished on the podium in every one of his seven races.

But with over half the season still to go, including an intensive four races in five weeks in September and October, he is keeping his expectations in check.

"Yes, we're seven races into the championship, I have to be smart and realise that I'm running at the front and there is a possibility of winning the championship," Hamilton said.

"But I still think it's far, far too early to even think about it or get any hopes up."

"Anything can happen during the season, I just have to try and remain consistent and try to keep on winning.

"But, you know, as many points from each race is good for the team and also for me. So I'm sure that's what me and Fernando are going to try to do."

McLaren's one-two finish at Indianapolis was the team's third of the season, making this their most successful season since 2000 when Mika Hakkinen and David Coulthard locked out the front positions four times.

It also saw their lead in the constructors' championship increase from 28 to 35 points over nearest rivals Ferrari.