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sm serial numbers

Citroën sm identification plateThe serial number of a Citroën sm can be found on a small identification plate located at the right chassis rail close to the engine. Next to this identification plate the serial number is also stamped in the chassis rail.
To first 2 numbers are 00 or 01, the next 2 digits are SB (2,7 liter carburetor engine with manual gearbox), SD (3 liter engine with automatic transmission), SC (2,7 liter fuel injected engine with manual gearbox). The last 4 numbers are the car serial number.
The table below shows the sm serial numbers in relation to the "commercialization" dates (when the cars left the factory).
Not all the serial numbers in the sequence below were attributed. A number of SB cars exported to the USA until October 1971 had the 2,7 liter engine with automatic transmission. When the first SB series numbers ran out at SB 9999 (June 1972) Citroën produced another series of 2,7 liter cars with automatic transmission for the USA. These cars had the 01 SB numbers and were produced together with the first SC cars. Not all the SD cars are automatics. About a third of this series of cars has the 3 liter engine with the manual transmission, a model that was much appreciated in the USA).

1970
September SB 0003 SB 0175  
October SB 0175 SB 0350  
November SB 0350 SB 0550  
December SB 0550 SB 1000  
1971
January SB 1000 SB 1500  
February SB 1500 SB 2050  
march SB 2050 SB 2600  
April SB 2600 SB 3000  
may SB 3000 SB 3600  
June SB 3600 SB 4050  
July SB 4050 SB 4775  
September SB 4775 SB 5375  
October SB 5375 SB 5600  
November SB 5600 SB 6000  
December SB 6000 SB 6450  
1972
January SB 6450 SB 6975  
February SB 6975 SB 8300  
march SB 8300 SB 8900  
April SB 8900 SB 9200  
may SB 9200 SB 9700  
June SB 9700 SB 9999  
July SD 0001 SD 0007 pre sales France
  01 SB 0001 01 SB 0100 01 prefix (00 runout)
September SC 0300 SC 0550  
  01 SB 0100 01 SB 0225 USA - Canada sales
October SC 0100 SC 0300 July production/October sales
  SC 0550 SC 0800  
  SD 0020 SD 0150 USA - Canada sales
November SC 0800 SC 1200  
  SD 0150 SD 0250  
December SC 1200 SC 1450  
  SD 0250 SD 0450  
1973
January SC 1450 SC1600  
  SD 0450 SD 0650 USA - Canada sales
February SC 1600 SC 1750  
  SD 0008 SD 0020 pre sales Europe
  SD 0650 SD 0850 USA - Canada sales
march SC 1750 SC 1900  
  SD 0850 SD 1035 USA - Canada sales
  SD 1035 SD 1075 USA - Canada sales
April SC 1900 SC 2000  
  SD 1075 SD 1300 USA - Canada sales
may SC 2000 SC 2250  
  SD 1300 SD 1450 USA - Canada sales
June/July SC 2250 SC 2800  
  SD 1020 SD 1035 pre sales Europe
September SC 2800 SC 2975  
  SD 1550 SD 1800  
October SC 2975 SC 3125  
November/December SC 2975 SC 3125  
December SD 1450 SD 1500 USA - Canada sales
1974
January/February SC 3325 SC 3500  
march SD 1800 SD 1950  
April SC 3500 SC 3575  
may SC 3575 SC 3650  
1975
January SC 4000 SC 4020  
February SC 4020 SC 4030  
march SC 4030 SC 4050  
April SC 4050 SC 4070  
may SC 4070 SC 4090  
June SC 4090 SC 4115  


Citroën SM at speed