Sebastian Vettel says "a lot of pressure has fallen off my shoulders" after Red Bull won the constructors' championship.

Vettel's victory in the Korean Grand Prix coupled with Mark Webber's third place was enough to secure back-to-back titles for Red Bull to go alongside Vettel's consecutive drivers' championships. Vettel told the official Formula One website that he enjoyed the race at Yeongam, but was relieved to take the win and confirm the team's success.

"It seems to be very difficult for people to imagine what this really means, for the whole team and the whole factory," Vettel said. "It is not only a boost for the people that are working at the track, where everyone sees that they are making a difference. There is also much more taking place behind the scenes: the team in Milton Keynes is working day in and day out, every day and every month of the year. It is down to them to build those two competitive cars which we have on the track and are able to push to their limits. It was a lot of fun on the track on Sunday, but also a lot of pressure has fallen off my shoulders after I crossed the line."

Vettel also said that Red Bull would not be easing off now both titles are decided, and that the chase for race victories would be the driving force for the rest of the season.

"Sure, people expect us now to lean back and take it easy, but this is not our approach, as we are here to win races and to do our best. And we managed to do exactly that. We had the chance to win and we took it."