Hamilton has launched first clothing range since last race in Italy but insists he has been focused on Singapore GP and F1 title
"There's not been a single moment over these two weeks that I'm not thinking about racing, that I'm not thinking about the championship and how I want to arrive - knowing that you're coming into a difficult race that you want to try and bring more to," Hamilton told to reporters.
Hamilton has won three of the last four races despite Ferrari's recent surge, but says that they are prepared for anything.
"It's not a factor," he stated. "We do expect there's going to be some difficult races up ahead. Ferrari have been ahead of us the last few races so keeping up with them, if not passing them, is going to be tough."