The 1971 Citroen SM 5-Speed stands as one of the most ambitious collaborations in automotive history. By combining French avant-garde engineering with a Maserati-built V6, the SM redefined the luxury grand tourer. This specific burgundy example spent years in museum storage before joining the seller’s family collection in 2008.
Advanced Aerodynamics and Robert Opron Design
Chief designer Robert Opron gave the 1971 Citroen SM 5-Speed a distinctive Kamm-tail shape and tapered bodywork. This aesthetic choice reduces drag while creating a silhouette that still looks futuristic today. This car was refinished in burgundy in 2009 and features the highly desirable European-market pivoting covered headlights.
The front track is noticeably wider than the rear to improve stability and high-speed tracking. Polished stainless-steel covers sit over 15-inch steel wheels, which are currently wrapped in Cooper Lifeliner tires. Quad exhaust outlets hint at the Italian performance lurking beneath the long, sloping hood. The exterior remains a striking example of French aerospace-inspired design.
Hydropneumatic Suspension and Chassis Tech
Driving the 1971 Citroen SM 5-Speed is a unique experience thanks to its height-adjustable hydropneumatic suspension. This system uses nitrogen-filled spheres to provide a magic-carpet ride that adapts to different road surfaces. The driver can manually set the vehicle height using a lever located inside the cabin next to the seat.
The car also features a sophisticated self-centering power steering system that increases weight as speeds rise. Power-assisted disc brakes are located at all four corners, providing confident stopping force for the heavy coupe. While a hydraulic leak is noted at the front sphere, the foundational system remains an engineering marvel of the seventies.
Brushed Metal Interior and Italian Flair
The interior of the 1971 Citroen SM 5-Speed focuses on a blend of luxury and ergonomic innovation. Black leather bucket seats were reconditioned in 2012 to maintain the premium feel of the French cockpit. Brushed metal accents line the dashboard and center console, framing the iconic Jaeger instrumentation and the five-digit odometer.
A single-spoke steering wheel sits on a tilting and telescoping column, offering a clear view of the 160-mph speedometer. Comfort features include air conditioning, power windows, and an original-style Autovox AM/FM stereo system. These amenities ensured that the SM could compete with the finest luxury offerings from Germany and England during its prime.
Maserati V6 Performance and Engine Specs
The soul of the 1971 Citroen SM 5-Speed is its 2.7-liter V6, which was developed by Maserati engineers. It features three Weber two-barrel carburetors and was factory rated at 180 horsepower and 170 lb-ft of torque. This engine sends power to the front wheels through a crisp five-speed manual transaxle for maximum driver engagement.
Recent maintenance included an oil change and the replacement of the exhaust valves to ensure the V6 runs smoothly. The engine bay remains tidy, showcasing the complex plumbing required for the hydraulic systems and the rotary-style air conditioning compressor. This powerplant provides the high-revving character and mechanical soundtrack that defines the Maserati partnership era.
Final Auction Summary
This 1971 Citroen SM 5-Speed is a rare survivor that bridges the gap between classic design and advanced technology. Its museum-sourced history and manual gearbox make it a standout choice for collectors who appreciate French innovation. It offers a driving personality that is truly unlike any other vehicle from the twentieth century.
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Source: bringatrailer.com
