BBC Sport - Formula 1 world champion Sebastian Vettel still smiling
Champion Vettel still smiling
- From the section Formula 1
New Formula 1 world champion Sebastian Vettel says his status as double world champion has not fully sunk in yet, and insists Red Bull's strategy will not change with four races to go.
The 24-year-old says he celebrated wrapping up the title in Japan by singing Beatles songs at karaoke.
Available to UK users only.