Vettel confident after RB8 launch

Formula 1 world champion Sebastian Vettel is "as confident as he can be at this point" following the official launch of Red Bull's new RB8 car.

Vettel believes the gaps between teams in 2012 will be even closer than in previous years, following regulation changes to this year's cars, which the German thinks will leave Red Bull without "much room... to find something extra" over their rivals.

Vettel's team-mate Mark Webber and team principal Christian Horner also give their thoughts on the new car, plus designer Adrian Newey explains the inclusion of the controversial 'stepped nose' design.

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