Red Bull says late-season upgrade hurt Mark Webber
| By Sam Tremayne and Matt Beer |
Friday, January 4th 2013, 16:16 GMT |
Red Bull boss Christian Horner reckons that discomfort with the team's crucial late-2012 upgrade was the main reason Mark Webber fell away from Sebastian Vettel in last season's run-in. You have viewed over 30 free stories this month. Why stop there? Click here to find out how to continue reading.
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