The first and only is Nigel Mansell whose 30th F1 win came at the 1992 Grand Prix of Portugal.
Lewis Hamilton
The British driver Lewis Hamilton
Lewis Hamilton
Clay Regazzoni in Silverstone Circuit, British Grand Prix.
Jackie Stewart or Damon Hill i would imagine
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.
British driver Graham Hill won the 1963 Monaco Grand Prix Formula One motor races.
Peter Ryan at the 1961 United States Grand Prix.
The 2014 British Formula One Grand Prix will be held on July 6th at Silverstone.
Olivier Panis
First and only... Alain Prost with 51 wins.
The first F1 GP was in 1950 and it was the British GP. It was won by Giuseppe Farina.