sentences:  The championship was won by Mercedes-Benz, the German manufacturer ending the dominance of Ferrari which had won both of the previous World Sportscar Championship titles.The 1955 World Sports Car Championship was contested over a six race series.With legendary races such as the Mille Miglia and the RAC Tourist Trophy now part of an international race calendar, they were accompanied by the 24 Hours of Le Mans and 12 Hours of Sebring.