Sebastian Vettel's victory and Mark Webber's second-place finish at the Brazilian Grand Prix on Sunday were enough to give Red Bull its first constructors' title in Formula One.
"This is an unbelievable result," team principal Christian Horner said. "In six years this team has come from a team that no one took seriously, that everyone thought was a party team, to the 2010 Formula One constructors' champions."
The results at Interlagos gave Red Bull 469 points and it can't be surpassed in the final race in Abu Dhabi even if McLaren finishes first and second with Jenson Button and Lewis Hamilton.
Ferrari, which leads the drivers' title with Fernando Alonso, is third with 389 points.
Red Bull team members gathered in the pit lane to celebrate. "It is an unbelievable achievement," Vettel said. "I am very proud, regards to all the people in the team, in the factory. I am very proud. Proud of my team, of myself, so I would say a fantastic day."
Red Bull has been criticised for not being able to capitalise on its chances with the best car of the season.
The team has been quickest at nearly every track this year but failed to win several races thanks to driver mistakes and mechanical failures.
With such a dominant car, it could have arrived in the final two races with a comfortable lead in both the championships, but both drivers trail Alonso heading into the season-ending race in Abu Dhabi next weekend.
"As I said an extremely difficult season for us with lots of people talking us down at some stage, sometimes right, sometimes not right," Vettel said. "So it is good to show them one race from the end what we are made of. We are here to fight. It is a nice feeling to know that you have the better car and you did the better job over one season."
Red Bull is comparatively very new to F1 compared to traditional teams such as McLaren, Williams and Ferrari, and not many people thought it would become a competitive team so soon.
"We have finished ahead of teams with far more experience and heritage than ourselves," Horner said. "We took them on and we won. To do it in such dominant style, with our fourth 1-2 finish of the season, is very special. It's a very proud day for everyone in the team and for everyone within Red Bull."
Mark Webber said it would have helped if Red Bull allowed him to get by Sebastian Vettel on Sunday to increase the team's chances of winning the drivers' championship at the season-ending Abu Dhabi Grand Prix next weekend.
"It helps but it's not in the team's philosophy," the 34-year-old Australian driver said. "That's how it is." A victory for Webber on Sunday would have given him the chance to win the title with another victory in Abu Dhabi, regardless of how other drivers finished.
He arrived in Brazil with an 11-point deficit to championship leader Fernando Alonso of Ferrari and a 14-point advantage over Vettel. He leaves eight points behind Alonso and seven in front of Vettel.
"It was a good drive by (Sebastian) today for the win and that's how it is," Webber said. "I think the team's position has always been on the sporting side."
Vettel's only chance to win the title is to win the final race and hope Alonso finishes sixth or worse. Vettel has dismissed any help to Webber unless all his chances are completely extinguished, but he may have to do it if he is ahead of Webber but not enough in front of Alonso late in Abu Dhabi.
"Everyone has different ideas, but that's how it is at he moment," Webber said. "I will go there and do my best."