Ferrari 750 Monza - Ferrari 750 Monza
engine and gears
The 750 Monza was introduced in 1954 and had a 4-cylinder in- line engine that developed 260 hp. This engine, a design by Aurelio Lampredi , had been developed for Formula 2 in 1952 and 1953 with a two-liter displacement and in the Ferrari 500 it already produced 170 hp. The aluminum cylinder head and cylinder block were cast together to prevent leaks from a defective cylinder head gasket; the liners were screwed in from below. Alberto Ascariwon the drivers' world championship with this engine in both years. Lampredi made minor changes to the crankcase and cylinder head for the sports car engine, which had been bored out to three liters. An unsynchronized five-speed gearbox is installed on the rear axle ( transaxle ). 
Chassis and body
The car has independent suspension with double wishbones at the front, a De-Dion axle with transverse leaf springs at the rear, lever shock absorbers and duplex drum brakes on all four wheels. The first version also had a transverse leaf spring  at the front , which was later replaced by coil springs. The light metal body in which the driver sits on the right is screwed onto a ladder frame with oval longitudinal and round cross struts. In order to reduce air resistance, the passenger seat is covered when racing. 
The 750 Monza - chassis number 0440M - was used for the first time in the 1954 3-hour race in Bari , a round of the Italian sports car championship. At the wheel was Umberto Maglioli , who retired after an engine failure.
The 750 was given the additional designation "Monza" after Mike Hawthorn and Umberto Maglioli's victory at the Supercortemaggiore in Monza in 1954. However, the car is on the start list as the Ferrari 735 Monza , a special feature that cannot be fully deciphered. If you follow the racing history of the 735 Monza, which is sparse and is almost limited to use by private drivers, you will discover chassis numbers analogous to the 750 Monza. A mix-up with the previous model, the Ferrari 735S Spider, can almost certainly be ruled out, since a race victory was achieved with this vehicle, but not in Monza, but by the FrenchFrançois Picard at the Penya-Rhin Grand Prix in October 1954. The 750 made its first international appearance at the 1954 12-hour race in Reims . This time Umberto Maglioli shared the cockpit with Frenchman Robert Manzon . In the early morning hours, the race started at midnight, the car broke down due to a gearbox failure. This was followed by further successes in national sports car races in Italy and with the triumph in the RAC Tourist Trophy, the first victory in the sports car world championship , driven by Mike Hawthorn and Maurice Trintignant, this race being one of the curiosities in the history of sports car racing. In the Tourist Trophy, points for the sports car world championship were not based on the overall ranking but on the index ranking. Thus the little DB HBR of Paul Armagnac and Gérard Laureau won there , who only finished 21st in the overall standings.
At the end of the year, the cars were increasingly being sold to private customers. Alfonso de Portago won the Nassau Automobile Cup in December 1954 in the vehicle with the chassis number 0428MD and came second in the same vehicle in the Nassau Trophy Race a day later .
In the sports car world championship in 1955 , the Scuderia's use of the 750 Monza was sparse, where the cars had almost no chance against the Mercedes-Benz 300 SLR . At the 1000 km race in Buenos Aires this year Maglioli and Clemar Bucci were disqualified and only two private 750 Monza were used in the 24 Hours of Le Mans , entered this year by the French Michel Poberejsky and Pierre Louis-Dreyfus . Pobjersky with partners Masten Gregory and Dreyfus, who is at the helm with Jean Lucas shared, each failed after technical defects.
Despite the criticism of the handling of the car, the racing driver Paul Frère criticized after a serious accident while he described as "a piece of wood with four wheels on it and a magnificent machine," the car,  the 750 Monza with private drivers was not unpopular . In the USA and Europe, pilots such as Phil Hill , Walt Hansgen , Carroll Shelby , Luigi Piotti , Piero Carini , Ernie McAfee and Louis Rosier achieved a wealth of racing victories in national sports car races. Among the successes also scored the overall victory at the 12-hour race in Hyeres , aEndurance racing that was known and popular in the 1950s. Chassis 0486M was driven by the Swiss André Canonica and his Italian teammate Gino Munaron  .
Alberto Ascari had a fatal accident on May 26, 1955 during a test drive in Monza with a 750 Monza. Paul Frére did not rule out that this accident was also due to the driving characteristics of the car. The cause of the accident was never clarified. 
1956 to 1963
In 1956 the Scuderia switched to successor models such as the Ferrari 500TR and the 750 Monza were now driven exclusively by private teams. The 750 Monza had a total of 219 races by 1963 - the last known use in an SCCA race in Greenwood, USA in June 1963. 55 overall and 24 class wins were achieved. Most of the races at the age of 19 had the largely unknown Swede Gunnar Carlsson , who dominated the Swedish sports car championship with a 750 Monza in the second half of the 1950s. 
|Parameters||Ferrari 750 Monza (1955)  |
|Motor:||Four-stroke 4-cylinder in-line engine (installed in front)|
|Displacement :||2999 cm³|
|Bore × stroke:||103 × 90 mm|
|Compression:||9,2 : 1|
|Valve control:||2 overhead camshafts, driven by gears|
|Carburetor:||2 Weber double carburetors 58 DCO A / 3|
|Power:||260 PS (191 kW) bei 6400/min|
|Maximum torque:||272 Nm|
Multi-disc dry clutch, |
5-speed gearbox (not synchronized), limited-slip differential,
|Frame and body:||Steel tubular ladder frame, light metal body (screwed to the frame)|
|Front suspension:||Double wishbones, coil springs, lever shock absorbers|
|Rear suspension:||De-Dion axle, transverse leaf spring, lever shock absorber|
|Brakes:||hydraulically operated duplex drum brakes|
|Track width front / rear:||1278/1284 mm|
|Wheelbase :||2250 mm|
|Tire size front / rear:||5,25 × 16/6,5 × 16|
|Length × width × height:||4165 × 1651 × 1054 mm|
|Empty weight (without driver):||760 kg|
|Top speed:||up to 260 km / h|
Although many were built with 31 pieces compared to other Ferrari types and the 750 Monza, unlike other 1950s Ferrari models, only had a 4-cylinder engine, the vehicles available at auctions achieve maximum values. In 2006 the car, with chassis number 0492M, sold for $ 1,107,000 in the United States. Five years later, the car came back on sale and was more than twice as expensive as 2006 with a sales price of US $ 2,500,000  .
- Pino Casamassima: History of the Scuderia Ferrari. Nada Editore, Vimodrome 1998, ISBN 88-7911-179-5 .
- Peter Braun / Gregor Schulz: The great Ferrari manual. Heel, Königswinter 2006, ISBN 3-89880-501-8 .