Red Bull driver Sebastian Vettel knows that winning a fourth successive Formula One world title next season will be difficult.
The German clinched the 2012 title by just three points ahead of Ferrari's Fernando Alonso in a thrilling finish to the campaign.
At the age of just 25, Vettel is destined for F1 greatness - if he isn't there already - and if Red Bull's car is consistently quicker than his rivals, adding further world titles is certainly not out of the question.
But Vettel understands that once again he will be the hunted in 2013 and that it is not easy to consistently dominate the sport.
"I said after [the Brazil] race that the hardest thing is to win after you have [already] won," said Vettel.
"You get the attention and the pressure, and you are very likely to focus on how to win again, rather than the small steps [needed] to win in first place.
"Of course there's pressure, [and] on top of that it's always getting more and more tense at the end of the year, within the last couple of races depending on who you fight in order to try to win the championship.
"Obviously we have won the championship [in 2010 and 2011] and this year again, so I don't want to praise ourselves, but I think we have done a couple of things right."
Vettel said he would focus only on his own preparation for the 2013 season, preferring not to pay attention to what his rivals are doing in a bid to win his crown.
"The most important thing is to focus on yourself and to remain yourself," he said.
"You don't try to be something you are not it just distracts and takes energy away."