It has a beautiful and low body, a small masterpiece with the tail very unusual insect decorated with a small tail staggered back two places from soft sporty "elbow out" a real gem, designed by Ghia inspired by classic British spiders era, aluminum hood and trunk, the compression ratio was raised to 7:1 and changes to distribution (30 VEIZ carburetor) and the discharge allowed increased power to 30 hp at 4000 rpm / min ratio Bridge 10/43, the Sport Spider could exceed 110 km / h speed then satisfied every sportsman. It was a real treat for tourism fast and a good basis for competition in the 1100 class, the immediate success of the Mille Miglia mobilized customer interest and history. Fiat already had the engine head valves (108 CS) and SIATA promptly produced the conversion kit. The production of this model was also conducted by NSU in Neckarsulm and the Polish subsidiary of Fiat. Fiat 508 S better known and with the right "Gold Cup" is the most sought after by collectors.