Legacy Metrics

1912 Pierce-Arrow Model 66

66500roadUnited States
Engine
~825 cu in (13.5L) inline-six, ~100 hp
Colour
Two-tone deep maroon

The Pierce-Arrow Model 66 was the largest, most powerful production automobile of its era, built between 1910 and 1918 with an engine displacing up to 825 cubic inches — once recognised by Guinness World Records as the largest fitted to a production car. This particular example was assembled around a correct original 66-QQ engine with early ownership traced to George Dickinson and Fred P. Bagley of Massachusetts in the 1910s. Rebuilt by Howard Lane and later completed by Richard Pettingell, it carries a period-style five-passenger touring body and participated in the 1985 Transcontinental Tour, covering over 3,500 miles across North America.

Ownership

  1. Auction sale
    Estimate US$500,000 – US$700,000

    RM Sotheby's catalogue lot →

  2. Date unknownAcquisition unknown
    George Dickinson
    partial documentation

    Gloucester, Massachusetts resident recorded by the Pierce-Arrow Society as an early owner; possibly the original purchaser of chassis 66500.

  3. Date unknownAcquisition unknown
    Fred P. Bagley
    partial documentation

    Boston-based owner listed in Pierce-Arrow Society records during the same general early period as Dickinson.

  4. Date unknownAcquisition unknown
    Henry Austin Clark Jr.
    partial documentation

    Acquired the original 66-QQ engine, which was later used by Howard Lane in the reconstruction of this vehicle.

  5. Date unknownAcquisition unknown
    Howard Lane
    partial documentation

    Pierce-Arrow Society member from Massachusetts who assembled the car using the Clark-sourced engine, a custom-built frame, and Model 48 axles; later transferred the project to Pettingell.

  6. Date unknownAcquisition unknown
    Richard Pettingell
    partial documentation

    Brass car collector from Ellenville, New York, who completed the car by adding a period-style five-passenger touring body along with correct ancillary coachwork details.

  7. Date unknownAcquisition unknown
    Current owner
    partial documentation

    Acquired the car in the mid-1980s for a distinguished collection; oversaw mechanical upgrades including a 12-volt electrical system and hydraulic disc brakes, then entered the car in the 1985 Transcontinental Tour before commissioning a full cosmetic restoration.

Competition

  1. 1985
    1985 Transcontinental Tour

    A biennial cross-country driving journey organized by Millard Newman; the car covered roughly 3,500 miles from Portland, Maine to Portland, Oregon via mainly Canadian roads, reportedly outpacing other entrants on hills.

Maintenance & restoration

  1. Restoration

    Car assembled around an original 66-QQ engine; a new frame was fabricated to specification by a local craftsman, and axles from a Model 48 were fitted, with the front axle widened to suit the 66 frame.

    Assembly carried out by Howard Lane of Massachusetts.

  2. Bodywork

    A new five-passenger touring body was constructed in the style of original 66-QQ coachwork, complete with period-appropriate fenders, aprons, hood, top, windshield, coil box, and glove and tool boxes.

    Work carried out by Richard Pettingell.

  3. Modification

    Car upgraded for long-distance touring with a 12-volt electrical system including alternator and starter motor, a Zenith carburettor, a modern distributor, and four-wheel hydraulic disc brakes.

    Upgrades made by the current owner, in preparation for the 1985 Transcontinental Tour.

  4. Restoration

    Comprehensive cosmetic restoration carried out: bodywork was refined for fit and finish and finished in two shades of deep maroon; varnished wood wheels, tan leather upholstery, and a tan cloth top were fitted; brass trim throughout was brought to a high standard.

    Described as the most recent work on the car; no date given beyond being after the 1985 tour.

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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.