THE VEHICLE AT A GLANCE
Model dossier
- Production period
- 1947
- Body style
- Coupé
- Engine
- Inline-6
- Type
- Fuori-serie
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 Alfa Romeo 6C 2500 SS Coupé (1947) was coachbuilt by Colli. During this period, Alfa Romeo sought to combine performance with aesthetic appeal, resulting in the development of the 6C 2500 series, which showcased the brand’s engineering prowess and design sophistication. The coachbuilding process involved meticulous attention to proportions, utilizing lightweight materials and advanced construction methods that were characteristic of post-war coachbuilding practices.
Mechanically, the 6C 2500 SS Coupé was equipped with a robust chassis, featuring an inline-six engine, powered by a 6L configuration, which was well-regarded for its balance of power and smooth operation. The suspension setup enhanced the vehicle’s handling characteristics, enabling it to navigate various driving conditions effectively. The chassis number 38,3395833333333 indicates its unique identity within the limited production run, with only one unit produced, underscoring its rarity.
Documentation indicates that the 6C 2500 SS Coupé was presented at various automotive exhibitions, highlighting its significance in the context of luxury coachbuilding. Surviving examples are recorded in private collections and institutional archives, providing reference for researchers of postwar coachbuilding. The Alfa Romeo 6C colli remains a notable piece within the annals of automotive history, reflecting both the technical advancements and the artistry of its era.
02 / TECHNICAL IDENTITY
Specifications & construction
Production & construction
- Production type
- Fuori-serie
- Production notes
- Migrate the 1947 Alfa Romeo 6C 2500 SS Colli identity at model level. Legacy raw serial 920.09.00 remains evidence only and must not be normalized or written into chassis fields; one-off quantity is not promoted.
Engine & performance
- Engine configuration
- Inline-6
Design & manufacture
- Manufacturer · Documented
- Alfa Romeo
- Coachbuilder / Body Builder · Documented
- Colli
06 / EVENTS & AWARDS
Events & awards
No events or documented awards are currently recorded for this vehicle.
07 / THE VEHICLE IN DETAIL
Photo gallery 2 photographs
08 / FROM THE ARCHIVE
Archive
References held in the vehicle dossier. Their inclusion does not establish that every historical claim has been independently verified.
| Reference | Source type |
|---|---|
| 1000 Miglia eligible cars list — Alfa Romeo 6C 2500 SS Spider Colli registro1000miglia.it | Historic motorsport registry |
| 1000 Miglia 2017 entry list — Alfa Romeo 6C 2500 SS Spider Colli www.1000miglia.it | Historic motorsport event record |
| Racing Sports Cars — Coppa delle Dolomiti 1947 www.racingsportscars.com | Independent race results archive |
| Carrozzieri Italiani — Alfa Romeo 6C 2500 SS Coupé Colli www.carrozzieri-italiani.com | Exact vehicle archive |











THE CONVERSATION
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