Sebastian Vettel 'can't imagine' leaving Red Bull

Sebastian Vettel has revealed that it would to be too "difficult" to leave Red Bull after three years with the British-based outfit.

The world champion has been rumoured to be considering a move elsewhere, with the 24-year-old's current contract due to run out in 2014.

"I've been wearing a Red Bull helmet for almost my entire career. It is difficult to imagine another kind of life if you are so used to it," Vettel told Autosport.

"It would be like when you turn 18, 19 and move out of your family's home. I am very happy where I am right now and I don't want to move on to anywhere else."

Vettel, who clinched 11 victories from 19 races last year, has won just one grand prix this season so far.