AUTO PACKAGE: Vettel looking to tighten grip on fourth F1 title with win at British Grand Prix

  • by: MICHAEL CASEY , AP Sports Writer
  • Updated: June 26, 2013 - 1:00 PM

LONDON — With the controversy over Mercedes' in-season testing settled, the focus this weekend shifts to the British Grand Prix and three-time defending champion Sebastian Vettel's bid to win yet another title.