The Alfa Romeo RM was produced between 1923 and 1925, based on the RL model. It was introduced for the first time at the 1923 Paris Motor Show and total production was around 500 cars. The RM had a 2.0 L inline-four engine which produced between . As were most of Alfa Romeo's cars, this was also used in motorsports. Three versions were made: Normal, Sport and Unificato. Sport had a raised compression ratio, and Unificato had longer wheelbase and a slightly bigger engine. The RM's top speed was around .
+ Models Model Engine displacement Max power Years produced RM Normal 1944 cc (1923)RM Sport 1944 cc (1924)RM Unificato 1996 cc (1925)
Alfa Romeo half-track A very rare half-track version based on the RM was built in the 1920s. The half-track used the RM's inline-four engine modified to work with dry sump lubrication. The track used was licensed from Citroën Kégresse; only one example is known to survive.
Notes
References
de:Alfa Romeo RL/RM