1908 American Grand PrizeThe 1908 Grand Prize of the Automobile Club of America took place at Savannah, Georgia on November 26, 1908.The raceLouis Wagner won the closely contested race in his Fiat finishing less than a minute ahead of Victor Hémery's Benz. Wagner's average speed for the race was. Ralph DePalma set fastest lap in his Fiat, with an average speed of.