Legacy Metrics

1950 Alfa Romeo 6C 2500 SS

915.831roadItaly
Engine
2.4L DOHC inline-six, three side-draft carburetors, 110 hp
Colour
Two-tone combination

Alfa Romeo 6C 2500 SS chassis 915.831 is one of just 383 examples built after the war, bodied by Touring in its characteristic post-war style. Delivered to Switzerland in 1950, it passed to Raymond Barbey, a Lake Geneva private banker, then to his brother in Morocco, and later through Germany before reaching the United States. The car carries Mille Miglia eligibility and attended the 2015 Pebble Beach Concours d'Elegance. Its engine and drivetrain were comprehensively rebuilt by Jim Stokes Workshops at a cost of approximately $155,000.

Ownership

  1. Auction sale
    Estimate US$550,000 – US$750,000

    RM Sotheby's catalogue lot →

  2. 1950-11-01 → 1955Acquisition unknown
    Raymond Barbey
    partial documentation

    Private banker living on the shores of Lake Geneva, neighbor to automotive engineer Marc Birkigt. Received the car after it was imported to Switzerland in mid-1950.

  3. 1955 →Inheritance
    Barbey's brother
    partial documentation

    Raymond Barbey's sibling, resident in Morocco at the time the car was gifted to him; kept the vehicle through roughly the 1970s.

  4. → 2014Private sale
    Marc Caveng
    partial documentation

    Swiss collector who acquired the car after it arrived in the US; sold it to the consignor in 2014.

  5. 2014 →Private sale
    Current consignor
    partial documentation

    Had the car cosmetically refreshed with a two-tone finish, chrome wire wheels, and new interior trim; also had Jim Stokes Workshops rebuild the drivetrain and mechanicals.

  6. Date unknownAcquisition unknown
    German owner or restorer
    none documentation

    Car passed through Germany during the 1990s, where restoration work was carried out before the vehicle was subsequently sent to the United States.

Competition

  1. 1949
    1949 Concorso d'Eleganza Villa d'Este
    Won both the jury-selected Coppa d'Oro and the public-voted Gran Premio Referendum

    This refers to the 6C 2500 model type by Touring winning at Villa d'Este, not necessarily this specific chassis; noted as part of the model's period recognition.

  2. 2015
    2015 Pebble Beach Concours d'Elegance
    Exhibited only, not entered for judging

    Car was invited to appear following a cosmetic refresh by the current owner, but participated as a display vehicle rather than a judged competitor.

Maintenance & restoration

  1. Engine rebuild

    Original engine block was swapped out for a period-correct replacement unit during the car's early years; the substituted block carries a different serial number.

    Original block no. 928.141 was exchanged for period unit no. 926.778 at an unspecified early date.

  2. Restoration

    A full restoration was carried out while the car was in Germany during the 1990s, prior to its shipment to the United States.

  3. Engine rebuild
    Jim Stokes Workshops

    Comprehensive rebuild of the engine, gearbox, and associated mechanical components, reportedly costing around $155,000.

    Work was completed approximately a decade before the catalogue was written; the workshop is UK-based and well regarded for this marque.

  4. Bodywork
    Images Auto Body

    Full exterior refinish in a two-tone colour scheme, along with fitment of chrome wire wheels and renewed interior carpets and headlining.

    Interior trim work was handled separately by Franzini Bros. Work was completed after the consignor acquired the car in 2014 and before the 2015 Pebble Beach appearance.

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Each chassis record is compiled from public auction archives and links to its source material. Ownership, competition and maintenance entries are extracted from those catalogue listings by an LLM, which can make mistakes — please contact us with any corrections. The summary is Legacy Metrics’ own writing; we do not reproduce catalogue text.

“Full” and “partial” documentation labels indicate how well each entry is corroborated in the underlying sources, not an audit of the car’s physical paperwork. Names of recent or living owners are withheld for privacy.