Salmson S4-61 classic cars for sale

History of the Salmson S4-61

Salmson, originally founded in 1890 by Émile Salmson, quickly became a name associated with hand-built, technologically advanced vehicles. The S4 series, introduced by Société des Moteurs Salmson, dominated the brand’s portfolio for over two decades, embodying both luxury and engineering innovation. The S4-61 appeared in 1938 as a progression of the S4 DA, with only minor technical optimisations. During its production run, the S4-61 was positioned firmly within the mid-to-upper range segment, reflecting the brand’s focus on refinement, exclusivity, and cutting-edge solutions for its era.

Model history: S4-61 and the S4 lineage

The S4 model family was at the heart of Salmson for over twenty years, first with the S4 DA and then seamlessly continuing with the S4-61 in 1938. The transition brought limited mechanical changes, yet maintained the remarkable double overhead camshaft (DOHC) technology and the use of the distinctive Cotal semi-automatic transmission. The S4-61 was succeeded by further evolutions within the S4 series well into the 1950s, upholding Salmson’s reputation for advanced engineering in small-series, luxury automobiles.

Highlights and special features of the S4-61

The S4-61 is instantly recognisable by its DOHC 4-cylinder engine, delivering robust performance from a moderate 1731 cm³ displacement. Its Cotal transmission sets it apart: this four-speed, electromechanical, semi-automatic gearbox offers both four forward and four reverse gears, allowing the car to reach similar speeds in either direction. The shifting experience is remarkably smooth, with the clutch only required for initial movement. Its presence at historical events like the Paris Motor Show highlights its significance in French automotive circles.

Technical Data

Special Editions and Collectible Variants

Within the S4-61 family, notable body style variants included luxury-finished saloons and coupés. Each example was fundamentally a limited production vehicle due to Salmson’s commitment to craftsmanship and small series manufacturing, but special show models presented at the Paris Motor Show often featured bespoke details for high-profile clientele.

Weak Spots and Known Issues

Technical information on specific weak spots is limited. However, when considering a Salmson S4-61, attention should be paid to the maintenance condition of the complex DOHC engine and the Cotal transmission, which requires specialist knowledge for adjustment and repair. As with all hand-built pre-war cars, careful inspection of the electrics, gearbox synchronisation, and the condition of original materials (chrome, wood, and upholstery) is advised.

Engine, Performance, and Handling

The robust four-cylinder DOHC engine impresses with its willingness to rev and its mechanical stability, despite the compact displacement of 1731 cm³. With around 51–54 PS and a top speed of 130 km/h, the S4-61 offered lively dynamics for a car in its class at the time. The semi-automatic Cotal gearbox provided a unique driving experience, with seamless gear changes and the novelty of four reverse gears. The handling exhibits the hallmarks of French luxury engineering of the era, with rear-wheel drive and a balanced chassis. Key models to highlight:

• S4-61 four-door saloon: Benchmark for French mid/upper-class pre-war engineering.
• S4-61 coupé: Sought for its style, luxury features, and rarity.

Design, Interior and Accessories

The S4-61 stands out with its elegant silhouette, elongated bonnet, and finely detailed chrome elements. Both the saloon and coupé were available in an array of colours, often with two-tone paintwork tailored to individual customer preferences. Interiors featured high-quality materials, including genuine wood trim and plush upholstery. The clear, art deco-inspired dashboard and column-mounted Cotal gear selector are particularly distinct. Optional equipment included period essentials such as sunroofs, special wheels, and bespoke luggage sets.

Other Features and Details

Prominently showcased at major automotive events, such as the Paris Motor Show, the S4-61 established Salmson’s profile as a leading innovator in the pre- and post-war French market. Its low-volume production and advanced technical solutions continue to attract enthusiasts who value exclusive design and engineering ingenuity.

Summary

The Salmson S4-61 couples French engineering daring with elegant coachwork, making it a rare and technically fascinating choice among pre-war classics. With every listed and viewed Salmson classic coming from the S4-61 range, this model remains the centrepiece for collectors seeking French luxury and mechanical sophistication of the 1930s and 1940s.