Formula One statistics for Sunday's British Grand Prix at Silverstone:

Britain's championship leader Jenson Button has won six of the first seven races of the season for the Mercedes-powered Brawn GP team.
No driver has ever been so dominant and not become champion. However, seven drivers since 1950 have win six times in a season without taking the title.
No British driver has ever won seven of the first eight.
Only three British drivers -- Nigel Mansell, Damon Hill and Jim Clark -- have won seven races in a single season. All were champions.
Button has now won seven races in his career, a feat bettered by only nine of his countrymen.
If Button wins in Silverstone, it will be his fifth victory in a row. The last driver to do that was Germany's Michael Schumacher in 2004. The only Britons to achieve such a run were Clark in 1965 and Mansell in 1992.
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Button is chasing his eighth successive podium finish. Clark and Lewis Hamilton (nine in a row each) are the only Britons to have done better.
Schumacher holds the record for successive podium finishes, with 19 in 2001-02.
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Twelve Britons have won their home grand prix since the first in 1950. The most recent was Hamilton last year.
The last time the race went to British driver for two years in a row was in 1999 and 2000 with David Coulthard. Damon Hill also won in 1994 and was followed in 1995 by Johnny Herbert.
The last British driver to win at Silverstone from pole position was Hill in 1994.
Historically, starting on pole position has not been a big advantage at Silverstone. Only three times in the last 14 races there has the quickest driver in qualifying gone on to win.
This year's race will be the 43rd grand prix at Silverstone and could be the last for some time, with Donington Park lined up from 2010. Only Monza and Monaco have hosted more races.
Ferrari have won 15 times in Britain over the years, compared to McLaren's 14 and Williams's 10.
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Red Bull's Sebastian Vettel and Toyota's Jarno Trulli are the only drivers apart from Button to have started on pole position this season.
Button has been on pole in four of the seven races.
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McLaren have now gone eight races without being on the podium.
Brawn GP have finished one-two three times in seven starts.
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Force India have yet to score a point in Formula One, a run of 25 races.
Button is the only driver to have scored in every race so far this year.
McLaren have failed to score points for three races in a row, their worst run since 2004.
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BMW-Sauber's Nick Heidfeld has been classified in his last 35 races, a Formula One record. The German's last retirement was in the United States in June 2007.
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This year marks the 30th anniversary of Williams' first win at Silverstone in 1979. (Reporting by Alan Baldwin; Editing by Ed Osmond; To query or comment on this story email