 Complete the following phrase:  Both Sebastian Vettel and Mark Webber were retained by the team for the season, as was engine supplier Renault. Vettel defended his world title  becoming the ninth driver to do so  after winning eleven of the seasons races, and also achieved 15 pole positions during the season, breaking Nigel Mansells record from the season. Webber finished the season in third place in the championship, taking one victory, in the final race of the season in 