Alfa Romeo 6C

Alfa Romeo 6C name was used on road, race and sports cars made between 1925–1954 by Alfa Romeo. 6C refers to a straight 6 engine. Bodies for these cars were made by coachbuilders such as James Young, Zagato, Touring, Castagna, and Pininfarina. Starting from 1933 there was also a 6C version with a factory Alfa body, built in Portello. n the mid-1920s, Alfa’s RL was considered too large and heavy, so a new development began. The 2-liter formula that had led to Alfa Romeo winning the World Championship in 1925, changed to 1.5 liter for the 1926 season. The 6C1500 was introduced in 1925 at Milan, production started 1927, with the P2 Grand Prix car as starting point. Engine capacity was now 1487 cc, against the P2’s 1987 cc, while supercharging was dropped. First versions were bodied by Young and Touring.

In 1928, a 6C Sport was released, with a dual overhead camshafts engine. Its sport version won many races, including the 1928 Mille Miglia. Total production was 3000 (200 with DOHC engine). Ten copies of a supercharged (compressore, compressor) Super Sport variant were also made.

6C Gran Sport (1931)

Variants:

* 6C 1500, 44 bhp @ 4400 rpm, 109 km/h (68 mph) (1925–1929)
* 6C 1500 Sport, 54 bhp @ 4500 rpm, 125 km/h (78 mph) (1928–1929)- 171 cars
* 6C 1500 Super Sport compressore, 76 bhp @ 4800 rpm, 140 km/h (87 mph) (1928–1929)
* 6C 1500 TF, 84 bhp @ 5000 rpm (1928–1929)
6C 1750 (1929-1933)
6C Gran Sport (1931)
6C 1750 GTC Touring (1931)

The more powerful 6C 1750 (1752 cc actual) was introduced in 1929 in Rome. Base model had a single overhead cam; Super Sport and Gran Sport versions had DOHC. Again, a supercharger was available. Total production was 369.

Variants:

* 6C 1750 Turismo, 46 bhp @ 4000 rpm, 109 km/h (68 mph) (1929–1933)
* 6C 1750 Sport/Gran Turismo, 55 bhp @ 4400 rpm, 125 km/h (78 mph) (1929–1932)
* 6C 1750 Super Sport/Gran Sport, 64 bhp @ 4500 rpm, 130 km/h (81 mph) (1929–1932)
* 6C 1750 Super Sport/Gran Sport compressore,85 bhp @ 4500 rpm, 145 km/h (90 mph) (1929–1932)
* 6C 1750 Gran Turismo compressore, 80 bhp @ 4400 rpm, 135 km/h (84 mph) (1931–1932)
* 6C 1750 Super Sport/Gran Sport/TF, 85 bhp @ 4800 rpm, 170 km/h (110 mph) (1929–1930)

The 6C 2300 (2309 cc) was designed by Vittorio Jano as a cheaper alternative to the 8C.

Variants:

* 6C 2300 Turismo, 68 bhp @ 4400 rpm, 120 km/h (75 mph) (1934)
* 6C 2300 Gran Turismo, 76 bhp @ 4400 rpm, 130 km/h (81 mph) (1934)
* 6C 2300B Gran Turismo, 76 bhp @ 4400 rpm (1935–1937)
* 6C 2300 Pescara, 95 bhp @ 4500 rpm, 144 km/h (89 mph) (1934)
* 6C 2300B Pescara, 95 bhp @ 4500 rpm (1935–1937)
* 6C 2300 B Corto/Lungo (1935)
* 6C 2300 B Mille Miglia