Classic Car Classifieds > Riley RMB
The Riley RM Series was the last automobile series developed independently by Riley. RM vehicles were produced from 1945, after the Second World War, through the 1952 merger of the Riley's Nuffield Organisation with Austin to form BMC. They were originally made in Coventry, but in 1949 production moved to the MG works at Abingdon. The RM models were marketed as the Riley 1½ Litre and the Riley 2½ Litre.
There were three types of RM vehicles produced. The RMA was a large saloon, and was replaced by the RME. The RMB was an even larger car, and was replaced by the RMF. The RMC and RMD were limited-production roadsters.
All of the RM vehicles featured the pre-war Riley designed 1.5 L (1496 cc) 12 hp (RAC Rating) or 16 hp (RAC Rating) 2.5 L "Big Four" straight-4 engines with twin camshafts mounted high at the sides of the cylinder block and hemispherical combustion chambers.
The RMB was an enlarged RMA and was launched a year later in 1946. It used the 2.5 L (2443 cc) "Big Four" engine with twin SU carburettors, starting with 90 hp (67 kW) but increasing to 100 hp (75 kW) for 1948 with a 95 mph (153 km/h) top speed. The RMB was replaced by the RMF for 1952.
A car tested by The Motor magazine in 1949 had a top speed of 90 mph (140 km/h) and could accelerate from 0–60 mph (97 km/h) in 16.8 seconds. A fuel consumption of 19.6 miles per imperial gallon (14.4 L/100 km; 16.3 mpg-US) was recorded. The test car cost £1224 including taxes.
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