Alfa Romeo RM Sport Castagna | |
Manufacturer | Alfa Romeo |
---|---|
Production | 1923–1925 |
Predecessor | Alfa Romeo RL |
Successor | Alfa Romeo 6C |
Body style | limousine convertible |
Layout | FR layout |
Engine | 1.9 L I4 2.0 L I4 |
Transmission | 4-speed manual[1] |
Wheelbase | 2,900 mm (114.2 in) (RM Sport) |
Length | 4,250 mm (167.3 in) |
Width | 1,680 mm (66.1 in) |
Height | 1,650 mm (65.0 in) |
Curb weight | 1,450 kg (3,197 lb) |
Alfa Romeo RM was produced between 1923–1925, it was based on RL model. Car was introduced first time in 1923 Paris Motor Show and total production was around 500 cars. RM had 2.0 L straight-4 engine, which produced between 40 bhp (30 kW) to 48 bhp (36 kW). As most of Alfa Romeo cars this was also used in racing purpose. Three versions was made: Normal, Sport and Unificato. Sport had raised compression ratio and Unificato had longer wheelbase and slightly bigger engine. RM top speed was around 90 km/h (56 mph).
Models:
A very rare half track version based on RM was built in 1920s. The half track used RM straight-4 engine modified to work with dry sump lubrication. The track used was Citroën Kegresse licensed, only one example is known survive.[2][3]
Borgeson, Griffith (1990). The Alfa Romeo Tradition. Haynes (Foulis) Publishing Group Ltd. Somerset, UK. ISBN 0-85429-875-4.
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Type | 1910s | 1920s | 1930s | 1940s | ||||||||||||||||||||||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
4-cyl. | 12 HP / 15 HP / 24 HP / 15-20 HP / 20-30 HP | RM | ||||||||||||||||||||||||||||||||||||||
4-cyl. | 20/30 HP / 20-30 ES | |||||||||||||||||||||||||||||||||||||||
4-cyl. | 40/60 HP | |||||||||||||||||||||||||||||||||||||||
6-cyl. | G1 / G2 | RL | ||||||||||||||||||||||||||||||||||||||
6-cyl. | 6C - 1500 / 1750 / 1900 / 2300 / 2500 | |||||||||||||||||||||||||||||||||||||||
8-cyl. | 8C - 2300 / 2600 / 2900 | |||||||||||||||||||||||||||||||||||||||
Racing car |
GP | P1 / P2 | Tipo A | Tipo B (P3) | Tipo C (8C-35) | Tipo 308/312/316 | 158 / 159 Alfetta | |||||||||||||||||||||||||||||||||
Bi-motore | 12C | Tipo 512 |