roads and bridges specifically unique to the Medio course near Polizzi Generosa had been destroyed by landslides during severe rainstorms; the 1932 course saw the first use of the Piccolo course after a road connecting Caltavuturo and Collesano was constructed on the direct orders of Benito Mussolini himself by request of Florio. In 1953, the FIA World Sportscar Championship was introduced. The Targa became part of it in 1955, when Mercedes had to win 1-2 with the Mercedes-Benz 300 SLR in order to beat Ferrari for the title. They had missed the first two of the 6 events, Buenos Aires and the 12 Hours of Sebring, where Ferrari, Jaguar, Maserati and Porsche scored. Mercedes appeared at and won in the Mille Miglia, then pulled out of Le Mans as a sign of respect for the victims of the 1955 Le Mans disaster, but won the Tourist Trophy at Dundrod. Stirling Moss/Peter Collins and Juan Manuel Fangio/Karl Kling finished minutes ahead of the best Ferrari and secured the title. Course variants Several versions of the track were used. It started with a single lap of a circuit from 1906-1911 and 1931. From 1912 to 1914 a tour around the perimeter of Sicily was used, with a single lap of , lengthened to from 1948 to 1950. The 146 km "Grande" circuit was then shortened twice, the first time to , the version used from 1919-1930, and then to the circuit used from 1932 to 1936 and 1951 to 1977. From 1951-1958, the long coastal island tour variant was used for a separate event called the Giro di Sicilia (Lap of Sicily). The start and finish took place at Cerda. The counter-clockwise lap lead from Caltavuturo and Collesano from an altitude over down to sea level, where the cars raced from Campofelice di Roccella on the Buonfornello straight along the coast, a straight that was even longer than the Mulsanne Straight at the Circuit de la Sarthe in Le Mans. The longest version of the circuit went south through Caltavuturo (whereas the shortest version of the open-road circuit went east just before entry into Caltavuturo, through a mountainous section directly to Collesano) through an extended route through elevation changes, and climbed uphill through the nearby towns of Castellana, Sottana, Madonnuzza and Miranti, twisting around mountains up to the highest point- at Geraci Siculo, dropping down into Castelbuono, twisting around more mountains and