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).
