Red Bull boss Mateschitz says Sebastian Vettel is 'stronger than ever'
|By Jonathan Noble and Michele Lostia
||Friday, January 20th 2012, 11:32 GMT
Sebastian Vettel's rivals have been warned that the double Formula 1 world champion is better prepared for the forthcoming season than he has ever been before.
You have viewed over 30 free stories this month. Why stop there? Click here to find out how to continue reading.