Button vows to show aggression

The 29-year-old made a fine start to the year as he won six of the first seven races to storm to the top of the drivers' championship standings. However, he has not won a race since and only made a return to the podium at Monza earlier this month, finishing second, with Brawn GP team-mate Rubens Barrichello claiming his second win in three to cut Button's lead to 14 points.

"It is a difficult one but I think as soon as you start backing off and taking it easier that is when problems start," said the Frome-born driver. "You have got to go out and be aggressive but it is always in the back of your mind about finishing the races and being consistent."

Seven-time world champion Michael Schumacher recently backed Button to fend off Barrichello's challenge and win the championship. And while Button knows a circumspect approach in the final four races could still yield him the title, he believes a certain amount of positive driving will also be necessary.

"It is a great position to be in and I am very privileged to be leading the championship but it is also a tricky one as a driver as you are here to win and challenge for victory," Button added.

"But you can also think that I only have to finish just behind my team-mate in every race now and I would still win the championship by six or eight points. I am looking forward to the next four races as they are all circuits I love. They suit our car and suit me."

Button's title bid continues at this weekend's Singapore Grand Prix as Formula One looks to put behind it the latest scandal that has hit the sport.

Renault were on Monday given a suspended ban from Formula One following the revelations that Nelson Piquet Jr was ordered to crash at the inaugural night race in Singapore last year.

Button refused to get drawn into the controversy, insisting he is focused solely on events on the circuit rather than those off it.

"I am an individual so I can't speak for the sport and for the spectators but it is obviously sad," he added. "The good thing is, it is over and done with now and we can move on. For us the most important thing is good racing and that is what I care about. What happens off the circuit is down to the people that are involved but what goes on on the circuit has been fantastic over the last couple of years and long may it continue."