How did the Grand Prix Attack get its name? The moves 1. e4 c5 2. Nc3 Nc6 3. f4 characterize the Grand Prix Attack in the Sicilian defense.

     [FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]

     1. e4 c5 2. Nc3 Nc6 3. f4


How did the Grand Prix Attack get its name?
From this page, I quote


  The Grand Prix Attack got its name from the many strong British
  players who used it on the Grand Prix Circuit in the 1980's


As Remco Gerlich said, It was used by British players on the British Grand Prix circuit. Weekend tournaments that also have a combined standings.