Citroën SM Specs & Chassis Numbers

Compare the listed Citroën SM specifications and understand how to check an older chassis number. The listed variants predate the modern 17-character VIN format supported by our decoder. 3 listed variants. Free, no registration.

1970–1975 3 variants Petrol

Identifying this older vehicle

Original chassis numbers from before the modern VIN standard can be shorter and use manufacturer-specific formats. Do not add characters to make one fit a 17-character form. Compare the original markings with the registration papers and the correct period manual; a later registration or replacement identity plate needs its own supporting documents.

The NHTSA vPIC decoder is intended for model years 1981 onward. The specification rows below are a reference for comparison, not authentication of an individual car.

Citroën SM specs by variant

All 3 listed variants, grouped by fuel and gearbox. Open a group and compare the listed years, engine, power and emissions. On a small screen, scroll the table sideways.

Petrol · AUTOMATIC 1 variant

Variant	Listed years	Fuel	Engine	Power	Gearbox	Drive	CO₂
3.0L V6 3AT FWD (190 HP)	1970–1975	Petrol	3.0 L	187 bhp	AUTOMATIC 3sp	FWD	—

Petrol · MANUAL 2 variants

Variant	Listed years	Fuel	Engine	Power	Gearbox	Drive	CO₂
2.7L V6 5MT FWD (188 HP)	1970–1975	Petrol	2.7 L	185 bhp	MANUAL 5sp	FWD	—
2.7L V6 5MT FWD (180 HP)	1970–1975	Petrol	2.7 L	178 bhp	MANUAL 5sp	FWD	—

Specification reference from cardata.wiki. A question mark means a year boundary is missing from the source, not that production continues. An empty field means the source did not provide that value. Confirm the fitted engine, transmission and equipment against the car’s documents. How specification matching works.

Using the Citroën SM specifications

Start with the car’s year, body and engine, then compare the matching row. Several variants may share a model name while differing in power, transmission or drive layout. If the advert conflicts with the registration or manufacturer documents, resolve the mismatch before relying on the specifications. The catalog does not authenticate an older vehicle’s chassis or restoration.

Other SM generations and versions

The same nameplate across body styles and chassis generations.

SM Presidential

Other Citroën models

Compare another model, or see all Citroën models.

2CV AMI AX 3 doors AX 5 doors Axel BX BX Break Berlingo Berlingo X-TR C-Crosser C-Elysee C-Zero C1 3 Doors C1 5 Doors C2 C2 VTS C3 C3 Aircross C3 Picasso C3 Pluriel C3 X-TR C4 C4 Aircross C4 Cactus

Citroën SM identification FAQ

Can this tool decode an original Citroën SM chassis number?+

The variants listed here predate the modern 17-character VIN format. The decoder does not support their original short chassis numbers. Use the vehicle’s documents, original identification markings and a manufacturer archive or model specialist to investigate its identity.

Where should I check the Citroën SM identification number?+

Start with the registration documents and the original chassis or identification plate. Location and format depend on the vehicle’s era and body. Consult the correct period manual rather than assuming modern windscreen or door-label locations.

What do the Citroën SM dates in this catalog mean?+

The source lists years 1970–1975 across 3 variants. A question mark means a year boundary was not supplied. These are catalog dates, not a verified production history or an individual vehicle’s build date.

Is the Citroën SM specification reference free?+

Yes. You can read the listed specifications without an account. They are reference data and should be checked against period manufacturer documents when identifying or restoring a vehicle.

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Compare other models and generations with source specifications.

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