Legacy Metrics

1955 Austin-Healey 100S

AHS-3504racingUnited Kingdom
Engine
2.66L pushrod inline-four, aluminum Weslake cylinder head, 132 bhp
Colour
Spruce Green

The Austin-Healey 100S chassis AHS 3504 is the first production example of this rare hand-built aluminium-bodied racing model and the fourth car completed at the Healey Works in Warwick. It was delivered new to American actor and motorsport enthusiast Jackie Cooper at the 1955 Sebring 12 Hours, making it the only 100S finished in Cooper's personal Spruce Green livery. The car served as a development testbed for the upgraded Dunlop four-wheel disc brake system and retains several uniquely stamped brake components from that process. After decades of racing and a period of separation from its drivetrain, the car was reunited and fully restored by Fourintune Garage in 1990.

Ownership

  1. Auction sale
  2. 1955 →Factory delivery
    Jackie Cooper
    full documentation

    Cooper took delivery at Sebring in early 1955; the car was built to his personal specifications including a unique green exterior and interior, a specific distributor, and omission of the standard dash plaque.

  3. 1976 → 1997Private sale
    Bill Wood
    full documentation

    New England-based collector who initially acquired the drivetrain separately, then traded a motorcycle for the engineless bodyshell; reunited car and engine and commissioned a full restoration at Fourintune Garage in Wisconsin completed in 1990.

  4. 1997 → 2002Private sale
    Tommaso Gelmini
    partial documentation

    Italian owner who shipped the car to Italy and campaigned it in historic events including the Targa Florio and Mille Miglia Storica.

  5. 2002 → 2003Private sale
    Joe Hayes
    partial documentation

    Chicago-based owner who repatriated the car to the United States after its time in Italy.

  6. 2003 → 2008Private sale
    Bruce Earle
    partial documentation

    Pennsylvania owner who regularly campaigned the car in vintage racing events during his ownership.

  7. 2008 →Private sale
    William Story
    partial documentation

    California-based owner; the car was featured in the 2009 Austin-Healey Club of America calendar during his tenure.

Competition

  1. 1955
    1955 12 Hours of Sebring
    Driver: Jackie Cooper42nd overall — electrical failure

    Cooper co-drove with Roy Jackson-Moore; a wiring fault caused battery failure and Cooper pushed the car over a mile to the finish. They were on course for 7th overall and 2nd in class before the failure. Stirling Moss and Lance Macklin drove a factory-entered 100S in the same event.

  2. 1955
    Thompson Raceway
    Driver: Jackie Cooper

    One of several regional events Cooper contested with the car in the same year as Sebring.

  3. 1955
    Edenvale Airport Circuit
    Driver: Jackie Cooper

    Airport-based circuit race in Ontario, Canada, part of Cooper's 1955 campaign.

  4. 1955
    Beverly Race
    Driver: Jackie Cooper

    Race at Beverly, Massachusetts, one of several 1955 events Cooper entered with the car.

  5. 1955
    Watkins Glen
    Driver: Jackie Cooper

    Cooper competed at the New York circuit as part of his 1955 season with the car.

  6. 1955
    Nassau Trophy Races
    Driver: Jackie Cooper

    Bahamas-based race meeting; final event of Cooper's documented 1955 campaign with the car.

  7. 1990
    1990 Meadow Brook Hall Concours
    Entered for Peter Helck Trophy in Race Car Circle

    First post-restoration public appearance; entered by Bill Wood shortly after the Fourintune Garage restoration was completed.

  8. 2001
    Targa Florio Storica
    Driver: Tommaso Gelmini

    Historic version of the Sicilian road event; contested while the car was based in Italy under Gelmini's ownership.

  9. 2001
    Mille Miglia Storica
    Driver: Tommaso Gelmini

    Car ran as entry number 174 in the historic recreation of the Italian road race.

Maintenance & restoration

  1. 1989Restoration
    Fourintune Garage

    A comprehensive and correct restoration was undertaken on the car, which was in a somewhat disassembled but largely complete state. The work included reuniting the body with its original drivetrain.

    Located in Cedarburg, Wisconsin; the shop had experience restoring multiple examples of this model. Work was completed in 1990.

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.