The coupe Citroen SM 1970 - 1975 year modification 2.7 MT (170 hp)

Engine
Engine type	petrol
Engine capacity, cm³	2670
Boost type	No
Maximum power, hp/kW at rpm	170 / 125 at 5500
Maximum torque, N*m at rpm	230 at 4000
Cylinder arrangement	V-shaped
Number of cylinders	6
Number of valves per cylinder	2
Engine power supply system	carburetor
Compression ratio	9.1
Cylinder diameter and piston stroke, mm	87 × 75
General information
Brand country	France
Model assembly	France
Number of doors	2
Performance indicators
Maximum speed, km/h	217
Acceleration to 100 km/h, s	8.7
Sizes in mm
Length	4893
Width	1836
Height	1324
Wheelbase	2950
Suspension and brakes
Type of front suspension	independent, hydropneumatic element
Type of rear suspension	independent, hydropneumatic element
Front brakes	drum
Rear brakes	disc
Transmission
Transmission	mechanical
Number of gears	5
Drive type	front
Volume and weight
Fuel tank capacity, l	90
Curb weight, kg	1450

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 in a way that few cars of its era could match. With its unique design, advanced hydropneumatic suspension, and powerful V6 engine, the Citroen SM remains a sought-after classic for enthusiasts and collectors alike.

Design and Build

The Citroen SM boasts a sleek and aerodynamic coupe body style, with a length of 4893 mm, a width of 1836 mm, and a height of 1324 mm. Its 2950 mm wheelbase ensures stability and comfort, while the two-door configuration adds to its sporty appeal. Assembled in France, the SM reflects the sophistication and craftsmanship of its homeland. The car's design is not just about aesthetics; its low drag coefficient contributes to its impressive performance and fuel efficiency.

Engine and Performance

Under the hood, the Citroen SM is powered by a 2.7-liter V6 petrol engine, delivering 170 horsepower at 5500 rpm and 230 Nm of torque at 4000 rpm. This carbureted engine, with a compression ratio of 9.1, provides a smooth and responsive driving experience. The car accelerates from 0 to 100 km/h in 8.7 seconds, reaching a top speed of 217 km/h. The 5-speed manual transmission and front-wheel-drive system ensure precise control and a dynamic ride.

Innovative Suspension and Braking

One of the standout features of the Citroen SM is its advanced hydropneumatic suspension system. Both the front and rear suspensions are independent, utilizing hydropneumatic elements to deliver an unparalleled ride quality. This system not only enhances comfort but also improves handling and stability. The braking system, with front drum brakes and rear disc brakes, provides reliable stopping power, ensuring safety at high speeds.

Interior and Practicality

Inside, the Citroen SM offers a luxurious and spacious cabin, designed with attention to detail. The car's curb weight of 1450 kg is balanced by its 90-liter fuel tank capacity, making it suitable for long journeys. The combination of comfort and practicality makes the SM an ideal choice for both daily driving and weekend getaways.

Pros and Cons

Pros: Unique and timeless design, advanced hydropneumatic suspension, powerful V6 engine, luxurious interior, and excellent ride quality.
Cons: Limited production run (1970-1975), potential maintenance challenges due to specialized components, and drum brakes at the front which may feel outdated compared to modern standards.

Conclusion

The Citroen SM is more than just a car; it is a piece of automotive history. Its blend of innovative technology, elegant design, and impressive performance makes it a standout model in the classic car market. Whether you're a collector or an enthusiast, the Citroen SM offers a driving experience that is both unique and unforgettable. Its rarity and historical significance only add to its allure, making it a worthy addition to any garage.