Formula One hits the halfway mark of the season this weekend at a significantly revised Silverstone circuit for the British grand prix.
The new Arena layout at the Northamptonshire circuit includes a fast right-hander at Abbey and a new infield section that is hoped will boost overtaking.
Lewis Hamilton leads the championship by six points, ahead of his McLaren teammate Jenson Button, after taking two wins and a second place at the last three rounds.
McLaren leads the constructors' championship, but the Woking-based team will be under threat from a resurgent Red Bull.
Sebastian Vettel dominated the last race in Valencia and Red Bull is expected to take full advantage of Silverstone’s sweeping bends with its aero-efficient RB6, as it did last year when the team secured a dominant one-two.