1950 was the first FIA F1 Championship season. Also first season to have WDC. The WDC was Giuseppe Farina with 30 points which included 3 wins.
Norman Graham Hill (15 February 1929 - 29 November 1975) was a British racing driver and two-time Formula One World Champion. He was born in Hampstead, London. He was a citizen of the United Kingdom by nationality. He drove for a team called BRM - British Racing Motors. 1962 was the only year they won the world championship but that year they won both the drivers and constructors championship.
Sebastien Vettel won the 2010 Driver's Championship.
Sebastian Vettel won the Drivers' Championship in 2011.
The formula 1 season for 2009 has not yet finished so there is no winner yet.
Juan Manuel Fangio won in 1957 when he was 46
The winner of the 2011 Formula One World Championship was Sebastian Vettel, of Germany. He drives for Red Bull Racing, powered by Renault.
The last British driver to win the Formula 1 drivers championship was Jenson Button in 2009. Lewis Hamilton won in 2008. The last British winner before that was Damon Hill in 1996. See http://www.formula1.com/teams_and_drivers/hall_of_fame/ for the complete history.
The first ever Formula One grand prix was the 1950 British Grand Prix that was held on May 13, 1950 and was won by Nino Farina driving an Alfa Romeo Car. He qualified on Pole position, set the fastest lap and won the race. Incidentally Nina Farina won the 1950 drivers championship too.