Lewis Hamilton says "anything is possible" at the remaining three races as he attempts to overcome the odds and beat teammate Nico Rosberg to the title.
Victory at the U.S. Grand Prix moved Hamilton seven points closer to his teammate in the drivers' standings, but with the gap still standing at 26 points, the title remains Rosberg's to lose. Hamilton has to win all three races and hope his teammate slips up, while Rosberg can guarantee victory with a minimum of two second places and a third place.
Although the title is not in Hamilton's hands anymore, he appeared invigorated by his most recent victory and has vowed not to give up.
"I'm trying to keep a positive mental attitude," he said. "There are still points available and anything is possible. The moment you give up is the moment you lose. I've never given up in my life and I don't plan on doing so now.
"History has shown lots of ups and downs and changes [in previous years], and if you look at history there have been times where it is dead certain already, and there have been times where it has flipped. So that is exactly why I have got to keep my head down and keep trying to do the job I did this weekend, which I seriously believe I can do.
"I can't control what has happened to this point. It has already been set. All I can do is when I leave this season I know that I did everything with a full heart."
Hamilton has suffered three major engine failures this season, impacting his grid position at the Chinese, Russian and Belgian Grands Prix as well as forcing him to retire from the lead of the Malaysian Grand Prix. Rosberg suffered a suspension failure during practice in Austria, but has not had any power unit problems.
"So far it has been 100 percent reliable on his side," Hamilton said. "But often in seasons there can be 100 percent reliability on a car.
"Will that be the case on Nico's? Only time will tell. I can't get fixated on that. I have got to focus on mine, and I am hoping for these last three I will have 100 percent reliability -- that would be a real breath of fresh air. I will try and utilise that opportunity with driving like I did today."