Ross Brawn admitted he was proud of the whole Brawn GP team after successfully wrapping up both F1 championship titles in the Brazilian Grand Prix.

Brawn went into the weekend needing just a single point to secure the manufacturers' crown, while Button needed to ensure a lead of at least ten points following the Interlagos race to claim the drivers' title.

Having qualified down in 14th place, Button produced an impressive and aggressive drive to battle his way through to fifth place, which proved enough to lift the crown after team-mate Rubens Barrichello could only manage eighth place.

That gave the British driver his maiden title while the constructors' title was also secure barely ten months after it appeared that the team could be forced to close its doors following Honda's decision to quit the sport.

"What a day!" Brawn, who was clearly emotional at the end of the race, said. "I am so incredibly proud of the team and our drivers and it's so very special to have won the constructors' and the drivers' championships in our first year as Brawn GP. The second half of the year has been tough after such a successful start but getting the results in the difficult times is what counts in a championship season. It's really going to take a while for what we have achieved today to sink in."

Button's title bid was based on a superb start to the season, which saw him win six of the opening seven races. The second half of the season saw Barrichello come to the fore as he attempted to reel in his team-mate and Brawn praised both drivers for the way in which the title battle had been fought.

"Jenson is a fantastic racer and he had a great race today, particularly after such a difficult qualifying yesterday," he said. "He knew what he had to do and did just that and is a very deserving world champion.

"Rubens has made a fantastic contribution to this season without which we could not have won the constructors' championship today. The spirit in which our two drivers have fought for the Championship makes me very proud. They have been a credit to the team and our sport."

Brawn also took time to thank Mercedes for the support shown in stepping in to provide engines for the 2009 season, while he also gave mention to those people who the team had been forced to let go when it downsized following the takeover from Honda.

"The work and the commitment that the team showed over the winter and throughout this season really has been sensational," he concluded. "We would like to take this opportunity to say our thanks to Mercedes-Benz who have been a fantastic partner for our team and have integrated incredibly well this season. Their contribution to our success, and the support of McLaren gave us over the winter and at beginning of season, has enabled us to be in the position that we are in today.

"I hope that everyone at the factory in Brackley and at Mercedes-Benz High Performance Engines in Brackley, is very proud of what we have achieved today. I also want to thank everyone who has worked with the team over the years that couldn't be with us this season as we had to resize the team at the start of the season. My sincere thanks go out to them because they worked so hard and should feel a part of our success."