In 1955, Ferrari's commitment to trying to counter Mercedes supremacy was exceptional, even if it did not produce acceptable results. In the Sport category, the 750 and 860 Monza with four-cylinder engines and the 118 and 121 LM with six cylinders were developed in Maranello. Ferrari also envisaged the use of the 12-cylinder 5000cc and 340 horsepower, which was mounted on the new 410S. The car made its debut in 1956, when Mercedes had already withdrawn from racing. The 410S showed evident signs of poor tuning, also due to the enormous power of the engine which stressed the transmission excessively. The two specimens were sold to two private pilots, John Edgar and Sture Nottorp. The Scaglietti body shop, meanwhile, prepared two more examples, one in a boat version for Scuderia Parravano, the other coupé for Paul Cavallier.