Triple world champs Sebastian Vettel and teammate Mark Webber were on-site at the unveiling of the Infiniti Red Bull RB9, the partnership's entry into the 2013 Formula One racing season. The RB9 represents their ninth Formula One entry into the race and is said to be an evolution of last year's title winner. Click through the thumbs above for a look at the purple machine that's looking like the front-runner of this year's F1 season.

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[via Mirror ]