David Coulthard analyses Sebastian Vettel of Red Bull

BBC F1 co-commentator David Coulthard knows Sebastian Vettel well as a former rival and in his position as a consultant to the German’s Red Bull team.

As the youngest champion in Formula 1 history prepares to start the defence of his title in Australia on Sunday, Coulthard analyses the 23-year-old’s status in F1.

“Drivers go through various stages in their career. Winning the title will move Vettel out of the first one – when, if you like, you’re young and somewhat naive and everything’s new and exciting and you’re driving on your instincts – into the next one, when you’re established and starting to mature.