The Alfa Romeo RM is a road car that Alfa Romeo built from 1923 to 1925, based on the RL model. It was first shown at the 1923 Paris Motor Show, and about 500 cars were built. Like most Alfa Romeo cars of the time, it was also used in motorsport. This page covers the key facts, the history and the questions people ask most often.
Alfa Romeo RM at a glance
| Manufacturer | Alfa Romeo |
|---|---|
| Production years | 1923–1925 |
| Based on | RL |
| Units built | About 500 |
| Engine | 2.0-litre inline four, 40–48 PS (29–35 kW) |
| First shown | Paris Motor Show, 1923 |
The power range is given in the English article for the RM engine. The sources do not list the gearbox or the weight.
History
The RM was produced between 1923 and 1925 on the basis of the RL. It was introduced at the 1923 Paris Motor Show, and total production was around 500 cars. Like most Alfa Romeo cars of its time, it was used in motorsport.
The Russian article describes the RM as a road car of the 1923 to 1925 period, built on the RL chassis.

Design and features
- A 2.0-litre inline four with 40–48 PS.
- Used in motorsport as well as on the road, as was usual for Alfa Romeo at the time.
Variants
- Alfa Romeo RM: the road car described here, 1923–1925.
- Alfa Romeo RL: the model the RM was based on.
See also: the Alfa Romeo collection, the Alfa Romeo P2 and the Alfa Romeo RL.
Alfa Romeo RM questions and answers
When was the RM built?
From 1923 to 1925.
How many RMs were made?
About 500 cars, according to the English article.
What was it based on?
The Alfa Romeo RL.
Sources
- Alfa Romeo RM, English Wikipedia: production 1923–1925, RL basis, about 500 cars, 2.0-litre engine, Paris show
- Alfa Romeo RM, Russian Wikipedia: road car of 1923–1925 built on the RL
- Alfa Romeo RM Sport Castagna, Wikimedia Commons: photo and licence