Horner aims to extend 'halcyon period'

Red Bull team principal Christian Horner tells BBC F1 presenter Suzi Perry his main aim for 2013 is to extend the "halcyon period" that has seen his team win three drivers' and constructors' titles.

Three-time world champion Sebastian Vettel and Mark Webber will again drive for the team, and Horner expects the same names to be in contention for the title as in 2012, due to a relatively unchanged set of regulations.

Horner also discusses the merits of testing in Jerez alongside other teams, and the future of technical chief Adrian Newey.

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