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Red Bull will launch the car they hope will land them their fourth consecutive Formula One titles on February 3.
The RB9 is to be unveiled at the team's Milton Keynes factory two days ahead of the first four-day test in Jerez.
Technical director Adrian Newey had recently suggested the team's battle in claiming a hat-trick of championships at the end of last season had "compromised" the development of the new car.
At that stage there was a suggestion Red Bull would have to wait until the second test in Barcelona that starts on February 19.
But via their Twitter feed the team said: "The RB9 will be unveiled on Sunday 3 February in Milton Keynes ahead of the first test in Jerez. More details to follow."