Legacy Metrics

1931 Alfa Romeo 6C 1750 Gran Sport Spider (Pettenella body in Zagato style)

8513034roadItaly
Colour
Traditional red

Chassis 8513034 is a fourth-series Alfa Romeo 6C 1750 Gran Sport whose pre-war history remains unknown. Rediscovered in a Long Island salvage yard in 1956, it passed through early American ownership before being returned to Turin in the mid-1970s, where Carrozzeria Pettenella — specialist re-creators of Zagato coachwork, active 1973–1976 — rebodied it as a Gran Sport Spider in the Zagato idiom, the body it retains today. Since 1999 it has competed four times in the Mille Miglia and appeared at several other European historic events.

Ownership

  1. Auction sale
    Estimate €900,000 – €1,300,000

    RM Sotheby's catalogue lot →

  2. → 1955-11-01
    Insurance company (US)
    partial documentation

    The vehicle was left at a Long Island salvage yard, apparently relinquished following an insurance claim settlement.

  3. 1956-02-01 →Acquisition unknown
    Kurt Miska
    partial documentation

    Located the car in a wrecking yard on Long Island in early 1956; extent of his ownership beyond the discovery is unclear.

  4. 1956-03-01 →Acquisition unknown
    Tom Powel
    partial documentation

    Reportedly took ownership in spring 1956; may have had a coupe or drophead body fitted during the 1960s, possibly by Zagato according to one source.

  5. → 1999Acquisition unknown
    Hoyle Collection
    partial documentation

    A private northern England collection that held the car, believed to have acquired it during the 1980s after the Turin rebodying work.

  6. 1999 →Private sale
    Current owner (consignor)
    partial documentation

    Has used the car actively in historic motoring events and maintained it through marque specialists in Würzburg.

Competition

  1. Mille Miglia (historic)

    The current owner entered the historic Mille Miglia on four separate occasions; specific years not stated.

  2. Ennstal Classic

    Participated under the current owner as part of regular historic event use; no specific year or result given.

  3. Kitzbüheler Alpen Rallye

    Entered by the current owner; no specific year or result provided.

Maintenance & restoration

  1. Modification

    Gearbox, front axle, and steering box were replaced to make good missing or damaged components present when the car was found in 1956.

    Work is believed to have occurred in conjunction with the broader 1970s restoration and rebodying programme.

  2. Restoration
    Carrozzeria Pettenella

    Comprehensive restoration and rebodying carried out in Turin in the mid-1970s. Carrozzeria Pettenella fitted an entirely new Gran Sport Spider body in the Zagato manner on the original chassis; the body remains on the car today.

    Pettenella operated between 1973 and 1976 and was highly regarded for the quality and fidelity of its Zagato-style coachwork reconstructions.

  3. Service
    Feierabend

    Ongoing maintenance carried out by a Würzburg-based Alfa Romeo marque specialist.

    Work performed during the current owner's tenure from 1999 onwards; car also holds a FIVA category B4 identity card.

Are you the owner of this car?

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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.