Brawn sure title battle will be clean

With Rubens Barrichello's recent form having seen him close in on points leader Jenson Button, there have been widespread suggestions that tensions between the pair could rise - and suspicions have been surfacing about either of them withholding information.

However, Brawn is adamant that he will now allow such a situation to develop between Button and Barrichello, especially as his policy is for all information to be freely exchanged between drivers.

"I can assure you that the information is all there on the data screens and each engineer is free to look at the other drivers' data," said Brawn ahead of the Singapore Grand Prix.

"I don't think the drivers ever tell each other the nuances of how they brake or steer into a corner. I have never seen that happen before, and I am sure I will never see it happen again.

"You don't get the apprentice and master style approach, but this is as good as I've ever seen it in terms of two drivers trying to beat each other in a championship. They are very open and very honest with each other."

He added: "The only political pressure is from within the team, if you like. There is no pressure from outside the team and we just want to do things as openly and as fairly as we can. Something may happen where one driver gets upset with the other, or gets upset with the team, and we cannot predict that.

"All we can do it be as straightforward as we can. I think the two drivers of the calibre we have got, you cannot separate one out unless it becomes mathematically impossible to win."

Brawn believes that Barrichello's season has been transformed by the decision he took to change brake materials from the British Grand Prix - which gave a boost with his car feel as well as having aerodynamic benefits.

"I think the brake material he had at the beginning of the season had more potential but it was more difficult to use," explained Brawn. "Now you don't talk about brakes with Rubens, whereas last year it was a constant discussion. So that has possibly helped.

"I think they are so close, it was unnatural that Jenson was winning all the races and Rubens wasn't, because they are pretty close. So, I think by the end of this season it will probably have balanced out quite well."

Brawn has also revealed that no decision will be made about his team's 2010 driver plans until after the season has finished.

"We've got this championship going on at the moment and discussions are going on, but nothing will be announced until much later," he said.

Amid speculation that Nico Rosberg in on his way to the team, Brawn denied that the fight between Button and Barrichello for the world title could also be one that decides which drivers stays.

"I don't think so, no. I don't think it will get to that," he said.