V12 models used downdraft carburettors located centrally in the "valley" of the engine, while the inline-engined fours used side-draft units and thus did not need the hood scoops.
A single closed 625 TF berlinetta, one of the last Ferraris designed and built by Vignale, was created in the Spring of 1953.
Sporting an enlarged 2.9 L (2941.66 cc/179 in³)[3] engine, Ascari's 735 S was more capable at Monza, leading the race until he collided with a 250 MM.
The car debuted on December 20, 1953 at the 12 Hours of Casablanca driven by Ascari and Luigi Villoresi, placing second to a 375 MM.
The company hit its stride, earning the World Sportscar Championship in 1954 and contending in 1955 despite the legendary Mercedes-Benz team.
Sporting a three-litre version of the 500 Mondial's engine, the Monza was much more powerful, with 260 PS (191 kW) available, but barely heavier at 760 kg (1,675 lb).
The new-style body was penned by Pinin Farina and presaged the droop-nose look of the famed 250 GTO, but it was Scaglietti's 750 Monza, with its faired-in headrest suggesting the flowing Testa Rossa that drew attention.
Although they were strong on the track, the Monza was unable to hold off the Mercedes-Benz 300 SLR in 1955, allowing the Germans to seize the sports car championship that Ferrari claimed in 1954.The short-lived 857 S of 1955 was an attempt to hold off the strong Mercedes-Benz team, something the 750 Monza and the 376 S/735 LM had been unable to do.
An existing 750 Monza chassis received an enlarged version of Lampredi's four, now displacing 3.4 litres (3,431.93 cc; 209.4 cu in)[11] and producing 280 hp (206 kW).
The car was not competitive with the German team at the 1955 Tourist Trophy, so Lampredi went back to the drawing board for the next season.
This despite the fact that Jaguar's new D-Type took the crown at the newly restricted Le Mans and Maserati's 300 S took the 1000km Nürburgring race.
Among the most important was a coil spring suspension, a radical departure for Ferrari, as well as a synchronized transmission with a two-disc clutch.
The 500 TR continued its predecessors tradition of light weight, coming in at just 680 kg (1,500 lb), and this combined with the engine's 180 hp (132 kW) [13] to bring stirring performance to the car.
In 1956 12 Hours of Sebring Fangio and Castellotti team won the race with Musso and Schell scoring 2nd place.
Out of fours cars, three were bodied by Carrozzeria Touring, and the design aped the 750 Monza including the faired-in headrest.
The most significant changes were made to comply with Annex C of the International Racing Code, resulting in the "C" added to the model's name.
The Scaglietti-built body, while similar to that of the 500 TR, had a lower hood and slightly reshaped wheel arches and fenders.
They were both owned and raced by John von Neumann, owner of the Ferrari Representatives of California dealership.