The coupe Citroen SM 1970 - 1975 year modification 2.7 AT (180 hp)

Citroen SM: A Timeless French Masterpiece

The Citroen SM, produced between 1970 and 1975, is a true icon of French automotive engineering. This luxurious coupe combines elegance, innovation, and performance, making it a standout model in the history of passenger cars. With its unique design and advanced technology, the Citroen SM remains a sought-after classic for enthusiasts and collectors alike.

Design and Build

The Citroen SM features a sleek two-door coupe body type, reflecting the design trends of the early 1970s. Its dimensions—4893 mm in length, 1836 mm in width, and 1324 mm in height—give it a commanding presence on the road. The car's wheelbase of 2950 mm ensures stability and comfort, while its curb weight of 1450 kg strikes a balance between agility and solidity. The hydropneumatic suspension system, a hallmark of Citroen's innovation, provides an exceptionally smooth ride, adapting to road conditions with ease.

Engine and Performance

Under the hood, the Citroen SM boasts a 2.7-liter V6 petrol engine, delivering 180 horsepower at 5750 rpm. With a maximum torque of 245 N*m at 4000 rpm, this engine ensures responsive acceleration and a top speed of 205 km/h. The car accelerates from 0 to 100 km/h in 9.3 seconds, a respectable figure for its era. The carburetor-based fuel system and a compression ratio of 9.1 contribute to its efficient performance. The front-wheel-drive configuration, paired with a 3-speed automatic transmission, offers a driving experience that is both dynamic and refined.

Innovative Features

The Citroen SM is renowned for its advanced hydropneumatic suspension, which not only enhances ride comfort but also improves handling. This system, combined with independent suspension on both the front and rear, ensures superior stability and control. The braking system, featuring drum brakes at the front and disc brakes at the rear, provides reliable stopping power. Additionally, the car's 90-liter fuel tank capacity allows for extended journeys without frequent refueling.

Pros and Cons

• Pros: The Citroen SM offers a unique blend of luxury and performance, with its hydropneumatic suspension delivering an unparalleled ride quality. Its V6 engine provides ample power, while the automatic transmission ensures ease of driving. The car's timeless design and French craftsmanship make it a true classic.
• Cons: The Citroen SM's drum front brakes may feel outdated compared to modern systems, and its 9.3-second acceleration to 100 km/h is slower by today's standards. Maintenance of the hydropneumatic suspension can be complex and costly, requiring specialized knowledge.

Historical Context

The Citroen SM was introduced during a period of significant innovation in the automotive industry. Its production coincided with the rise of luxury coupes, and its advanced features set it apart from competitors. The car's design and engineering reflect the optimism and creativity of the early 1970s, making it a symbol of its time.

Conclusion

The Citroen SM is more than just a car; it is a testament to French ingenuity and a celebration of automotive excellence. While it may have some limitations by modern standards, its unique features and timeless appeal make it a worthy addition to any classic car collection. For those seeking a blend of history, innovation, and style, the Citroen SM is an exceptional choice.