Red Bull has revealed the new RB10 in Spain ahead of the start of pre-season testing at Jerez as it seeks to launch a bid for a fifth successive F1 title.

As with sister team Toro Rosso - and rivals Force India - the new car features a narrow protruding section at the front of the nose in line with the new regulations that dictate that cars must have a lower nose.

Power will again come from Renault, although a new-look driver line-up sees Daniel Ricciardo come in to replace Mark Webber alongside champion Sebastian Vettel.

Team principal Christian Horner says the team is determined to extend its run of success after securing four consecutive championship doubles.

"The atmosphere in the team is excellent at the moment," Horner said. "Obviously we've been riding on the crest of a wave over the last four years and there's a great determination to see that continue in to 2014. It's been the most intense winter that we've had, we've produced the car in the shortest possible amount of time through the design and manufacturing process and it's been fantastic to see the teamwork operating the way it has."

However, Horner admitted that he is also wary of the importance of the new power units, which could take an aspect of competitiveness out of Red Bull's hands.

"I think the key elements this year are obviously the engine is going to be a crucial factor. I think that reliability of the power units is going to be critical and I think that obviously whoever has the most powerful, reliable power unit is going to come out on top. So it's a game changer in many respects in many respects the regulations for this year, but we look forward to the challenge."


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