THE VEHICLE AT A GLANCE
Model dossier
- Manufacturer
- Mercedes-Benz
- Base model
- 770 K
- Coachbuilder
- Castagna
- Production period
- 1931
- Body style
- Cabriolet
THE PEOPLE BEHIND THE CAR
Coachbuilding, design & conversions
PRICE & SALES RECORD
Vehicle value
- Original price
- Not documented
- Latest recorded sale
- Not documented
01 / THE STORY
History & context
The Mercedes-Benz 770 K (1931) was coachbuilt by Castagna. Developed during a period of significant innovation in the luxury automotive market, the 770 K represented the peak of pre-war coachbuilding, characterized by its bespoke design and engineering excellence. The coachbuilding process involved meticulous attention to proportions and construction methods, with Castagna employing traditional techniques to create a vehicle that combined form and function within a stylistic context reflective of the era. Mechanically, the Mercedes-Benz 770 K was equipped with advanced features for its time. Powered by a V8 engine, it delivered robust performance suitable for the demands of both public and private use. The chassis was based on a sophisticated layout that provided stability and comfort, essential for high-profile clientele. The suspension system was designed to ensure a smooth ride, enhancing the driving experience while maintaining the vehicle’s structural integrity. Documentation indicates that production of the 770 K was limited, with a small number of units produced to meet the specific requirements of affluent customers. Surviving examples are recorded in private collections and institutional archives, providing reference for researchers of postwar coachbuilding. The meticulous nature of its construction and the attention to detail in its design have made the Mercedes-Benz 770 K an important subject of study for automotive historians. The model continues to be featured in exhibitions, highlighting its significance in the evolution of luxury automobiles.
02 / TECHNICAL IDENTITY
Specifications & construction
Production & construction
- Production type
- Limited
- Production notes
- Exact legacy route plus independent specialist model reference support a 1931 Mercedes-Benz 770K W07 Cabriolet D by Castagna. One-off count and patron/designer narrative remain unpromoted absent stronger independent evidence. NO_AUTO_INHERIT.
Engine & performance
- Specification notes
- Confidence detail moved from confidence: high_disposition_only
03 / DESIGN, BODY & SUPPLIERS
Design, body & suppliers
Design & manufacture
- Coachbuilder / Body Builder · Documented
- Castagna
- Manufacturer · Documented
- Mercedes-Benz
Body form & construction
- Body style
- Cabriolet
04 / EVENTS & CHRONOLOGY
Events & chronology
No events or documented awards are currently recorded for this vehicle.
08 / GALLERY
Photo gallery 2 photographs
09 / PERIOD ARCHIVE
Period photographs & advertising
The period archive gallery will show historical photographs, advertisements, brochures and press images once assets, provenance and usage rights have been recorded in the masterfile.











THE CONVERSATION
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