Alfa Romeo 6C is the designation of a set of d model’s car, introduced in 1925, which in various versions and evolutions has been produced at the house in Milan from 1927 to 1950. The abbreviation “6C” acronym of 6-cylinders describes the splitting of the engine designed by Vittorio Jano, the Alfa Romeo designer who tied his name primarily to esacilindrici engines in a line of the 6C 1500. In the fall of 1924, had not yet gone to the echo of the triumphs Alfa Romeo P2, that Vittorio Jano received from the direction of Alfa Romeo ‘s invitation for the study of a mid-sized car and spirited performance.
Alfa Romeo 6C 1500
The early versions, the Alfa Romeo 6C 1500 Young 1927 and 6C 1500 Touring of 1928 rode a six-cylinder in-line with a single tree overhead cam 1500cc of displacement, capable of developing 54 hp and reach 125 Km/h. Engine Jano, although small, could develop such a great power because of reduced unit displacement (250cc) which had increased by 200% about the thermal performance compared to the standards. Sports versions of the 1500 Alfa Romeo were almost immediately with a double camshaft in the head and a system supercharger allowing the 6C 1500 to win in the ’28 Mille Miglia, the 24 Hours of Spa, the Targa Florio and the circuit of Modena. They had come out in 1928 even the 6C 1500 Sport from 76 hp and 140 km/h.
The Alfa Romeo 6C 1500 Sports Spider of ’28 was the first Spyder Alfa Romeo, and a version of it was called 6C 1500 NR in honor of Nicola Romeo who abandoned the helm of the company. The small engine 1500 cc stimulated many body builders, who churned out various versions of the 6C. In 1929, for example, the flour body proposed an elegant Torpedo. Among the most powerful versions, there was the 6C 1500 Sports compressor Zagato of ’29, led by Antonio Ascari and Giuseppe Campari. The Alfa Romeo 6c 1500 model has produced 1,075 copies. In 1928 he was made the Sports version Castagna Torpedo, with an engine DOHC from 54 hp, built in 171 specimens, some of which are also used as a road car.
Alfa Romeo 6C 1750
In 1929 he went into production the version with engine capacity increased to 1,752 cm³ hence the name of Alfa Romeo 6C 1750. 1750 remained in production until 1933 continued to dominate the weather rides. At the base of the range there was the 6C 1750 Turismo with an engine of 46 hp single-overhead cam head; the chassis, the wheelbase of 3.1 meters, lent itself to tourism bodies of four/six seats. Then there was the 6C 1750 Sport with a pitch shortened to 2.9 meters and DOHC engine by 55 hp, usually with sporting bodies to two/four seats. The of 1750 was the 6C 1750 Super Sport, with the short wheelbase of 2.7 m, with compressor more powerful and lighter (85 HP) or without (64 HP). They were mostly built in the spider version lightened, and six racing cars were equipped with a special engine fixed head, that is, with en bloc with the cylinder head, which allowed him to reach 95 hp.
In 1930 the Sport and Super Sport were replaced by Gran Turismo and Gran Sport, without substantial changes; He disappeared just the engine without turbo in the top model. They were also built six other Fixed Head competition based Grand Sport, with an output of 102 hp, the highest ever reached by the six-cylinder 1750. In 1931 and 1932 was also manufactured a supercharged version of Gran Turismo, Gran Turismo compressor, the long wheelbase of 3.1 m. Most received an Alfa Romeo car body aerodynamic sedan with four seats. In 1933, the 6C 1750 was joined by the 6C 1900 Gran Turismo, which took the place of Gran Turismo variants 1750. The same year the 6C 1750 Gran Sport received some improvements derived from the 6C 1900, which the box frame and a new cylinder head, cast in aluminum rather than cast iron. In the four years that the model remained in production, they were made 2,259 copies.
Alfa Romeo 6C 1900
In the last year of production of the new version was introduced in 1750 Alfa Romeo 6C 1900, with engine capacity increased to 1917 cc and which was introduced for the first time the light alloy head.
Alfa Romeo 6C 2300
The next version of the 6C was the Alfa Romeo 6C 2300 presented in 1934 and remained in production until 1937. This evolution introduced many new features including, first in Europe, the suspension with independent wheels. 1,606 copies were manufactured, including chassis (naked) and cars. A copy of Pescara spider type, designed by Touring, was commissioned in 1935 by Benito Mussolini, who used it until 1939. In 1936 the car ran the Mille Miglia driven by Ercole Boratto, Mussolini driver, reaching 13º.
Pininfarina made a sedan built using the frame 6C 2300B, who won the contest of elegance of Turin in 1937. The car was distinguished by special aerodynamic design executed by Mario Revelli di, Beaumont. On the occasion of the Geneva Motor Show of 1938, the Swiss coachbuilder Worblaufen created a customized version of 2300. In the cabriolet configuration, the car was equipped with aluminum and leather interior body.
Alfa Romeo 6C 2500
The 6C 2300 was replaced by the Alfa Romeo 6C 2500, the last car of the series before the Second World War and recovery in the first post-war period up to 1950 in 2,800 copies. Of these, 680 were built in the version Golden Arrow, ie 5 seat sedan equipped with a 90 bhp engine combined with a manual four-speed gearbox, which guaranteed a speed of 155 km/h. 2500 was the last version of the series 6C and was withdrawn from the market, replaced by Alfa Romeo 1900.
The 6c 2500 model was also brought to the race in Competition version. Designed in 1946, the car was smaller than an SS, had a new configuration of the shock absorbers and had 145 horsepower. With hand drawn aerodynamics, 6C reached over 200 km/h. Due to the shortage of materials due to the war, the version Competition was also raced only in 1948. He won on Pescara Circuit in 1949, driven by Franco Rol, came third at the Mille Miglia of 1949 and 1950, and won the Targa Florio 1950. Based on an Alfa Romeo 6C Type 256 racing in 1940, Pininfarina produced a single original in the road version spider. In 1942 also Bertone built a single copy of the base 6C 2500 SS. Designed by Mario Revelli di Beaumont, Alfa Romeo 6C had a much larger reservoir of other Alfa Super Sport.