Feb.1 (GMM) Red Bull on Tuesday revealed its new car for the 2011 season featuring the number 1 for reigning world champion Sebastian Vettel.

Photographs of the RB7, which is an evolution of the dominant title-winning car of 2010, were published on the team's official website shortly before a blue sheet was pulled off in the Valencia pitlane by Vettel - who will drive the car on Tuesday - and Mark Webber.

Mercedes will also reveal its 2011 car at the Ricardo Tormo circuit on Tuesday, as will Toro Rosso, while the new Williams will make its test debut with an interim livery.

No rain and mild temperatures are forecast for the first day of pre-season testing in Cheste, which is 25 kilometres from the Spanish port city Valencia.

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