The Ferrari 166 S was an evolution of Ferrari's 125 S sports race car that became a sports car for the street in the form of the 166 Inter. Only 39 Ferrari 166 S's were produced, soon followed by the production of the 166 Mille Miglia (MM) which was made in much larger numbers from 1949 to 1952. The 166 MM were in fact updated 166 S and were the cars that score many of Ferrari’s first international victories and made Ferrari a serious competitor on the racing industry. It shared its Aurelio Lampredi-designed tube frame and double wishbone/live axle suspension with the 125. Like the 125, the wheelbase was 2420 mm long. 39 examples were produced from its introduction at the Turin Motor Show in 1948 to its retirement in 1950.