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1973 Citroen SM
2dr Coupe
6-cyl. 2675cc/178hp FI
#1 Concours condition#1 Concours
#2 Excellent condition#2 Excellent
#3 Good condition#3 Good
$35,600*
+4.1%
#4 Fair condition#4 Fair
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Apr 2025
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1970-1975 Citroen SM stats
Highest sale
$739,958
Lowest sale
$6,908
Most recent sale
$28,350
Sales
103
Photos
17 photosImages may not reflect selected vehicle.
Past sales
$28,350
1973 Citroen SM Base
75000 M
Standard
North America
Mar 27, 2025Bring a Trailer
View details
$31,360
1973 Citroen SM Base
Standard
North America
Mar 7, 2025Gooding & Company
View details
$95,200
1973 Citroen SM Base
55079 M
Standard
North America
Mar 7, 2025Broad Arrow Auctions
View details
$38,788
1974 Citroen SM Base
52892 K
Standard
Europe
Feb 20, 2025Collecting Cars
View details
$23,540
1974 Citroen SM Base
Europe
Dec 4, 2024Bonhams
View details
$52,500
1973 Citroen SM Base
33000 M
Standard
North America
Nov 6, 2024Bring a Trailer
View details
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Model overview
Model description
In the late 1960s, Citroen acquired Maserati, in part due to a desire to create a high-performance halo car, The result was the Citroen SM, which debuted in 1970. The SM used a Maserati four-cam V-6 (later used in the Merak), which was placed in a front-wheel-drive coupe. The result was a four-seat GT capable of 140 mph and 0-60 times of 8.6 seconds.
Keeping in tune with the Citroen DS, the SM was packed with cutting edge technology. Most notable were the precise variable assist power steering, a slippery profile, rain-sensing wipers, and all manner of hydro-pneumatic driven systems: self-leveling suspension and headlights (advanced features despite being used on the DS in 1955), and inboard front disc brakes. The engine was initially an all-alloy 2.7-liter V-6 that produced 170 hp. A 180-hp, 3.0-liter V-6 was also available for a time during the model’s production run. Both 5-speed manual (later used in the Lotus Esprit) and 3-speed automatic transmissions were available.
Inside, the car was an exercise in French high style of the day. Thickly bolstered leather seats, a single-spoke steering wheel, and stylized gauges and other accoutrements stand out from other cars of the day. Fewer than 13,000 were built during its 5-year run, and the SM had to hastily exit the U.S. market in 1974 as the car could not be modified to meet crash mandates. Citroen later declared bankruptcy a year later, at which point the SM was axed.
For a long while the Citroen SM was dogged by a reputation for poor reliability and expensive fixes. Lately, however, the cars have become more popular among discerning buyers who appreciate a well-maintained car’s abilities. The well-maintained aspect is key here, as these aren’t cars that will stay on the road long when left to the care of unfamiliar mechanics or careless owners. The Citroen SM still feels advanced when driven today, and it can provide comfortable, high-speed, long-distance cruising for prices far below what similarly capable cars trade at. Euro cars tend to be at the top of the list as they carry the trick turning headlights (six of them).
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Common Questions
The value of a 1973 Citroen SM can vary greatly depending on its condition, mileage, options, and history. Typically, you can expect to pay around $35,600 for a 1973 Citroen SM in good condition with average spec.
The highest selling price of a 1973 Citroen SM at auction over the last three years was $95,200. The highest prices are usually reserved for rare or exceptionally well-maintained examples with desirable features or modifications and excellent history.
The lowest selling price of a 1973 Citroen SM at auction over the last three years was $9,400. The lowest prices are usually paid for examples that have extensive maintenance needs, differ greatly from their original configuration, or have accident histories or title problems.
In the last three years there have been 18 1973 Citroen SMs sold at public auction.
The most recent auction sale of a 1973 Citroen SM was $28,350 on March 27, 2025 by Bring a Trailer.
Many factors can increase a car's value including excellent condition, exceptional originality, a recent restoration, low mileage, unique provenance, desirable options, popular or unique color choices, and excellent maintenance records. Upgrades and modifications that enhance performance or aesthetics can also add value.
Factors that can decrease a car's value include unusually high mileage, poor maintenance history, visible wear and tear, accidents or damage, title issues, and gaps in ownership history. Additionally, less popular color choices and extensive modifications that don't appeal to a broad audience can reduce value.
Mileage plays a significant role in a classic car’s value. Lower mileage usually increases value because it indicates a higher degree of originality, is rarer, and suggests less wear and tear. However, cars with exceptionally low mileage may also have maintenance needs due to lack of use. Whether someone should pay more for a vehicle with lower miles will depend on how they plan on using it, and the vehicle's specific condition.
The value of modified cars differs widely based on the type and quality of modifications. While some modifications can significantly increase value, especially performance enhancements and high-quality custom work, others may not add much or could even detract from the car’s value if they appeal to only a limited audience.