1915 Pierce-Arrow Model 66A
- Engine
- T-head inline-six, ~824.7 cu in (approx. 13.5L), 60 hp
- Colour
- Red with black fenders and belt molding

A 1915 Pierce-Arrow Model 66A touring car built on the marque's longest 147.5-inch wheelbase, powered by a T-head six-cylinder engine displacing over 800 cubic inches. Fitted with Herbert Dawley's iconic fender-mounted headlamps and a seven-passenger body in red with black fenders, the car carries chassis number 67145 and has a documented ownership history through the Pierce-Arrow Society. Notable for reportedly being driven on one occasion by racing driver Phil Hill, it has been a regular participant in HCCA touring events under its current ownership.
Ownership
- —Auction saleEstimate US$600,000 – US$750,000
- 1983 → 2000Willis Boydpartial documentation
Based in Santa Ana, California; held the car for roughly seventeen years before selling it to the current owner.
- 2000 →Private saleCurrent ownerpartial documentation
Has participated in numerous HCCA touring events since acquiring the car; minor cosmetic work including new carpets, repainted panels, and a replacement canvas top was carried out during this ownership.
- Date unknownW.H. Cowlespartial documentation
Based in Santa Barbara, California; listed in Pierce-Arrow Society records as part of a documented ownership chain.
- Date unknownMonty Holmespartial documentation
Based in Seattle, Washington; one of a series of recorded owners per the Pierce-Arrow Society.
- Date unknownE.R. Bournepartial documentation
Acquired the car by 1971 and was based in San Diego, California; later commissioned an aluminum body casting for the subsequent owner.
- Date unknownPrivate saleRodney Flournoypartial documentation
Located in Likely, California; purchased from Bourne and had him fabricate a replacement aluminum body for the car.
Competition
- 1905Glidden Tour1905 Glidden TourDriver: Percy Pierce1st
Percy Pierce drove a four-cylinder Great Arrow in the inaugural running and claimed the reliability trophy by a decisive margin.
- —Glidden TourGlidden Tour (subsequent four events)1st (four consecutive wins)
Pierce vehicles claimed the Glidden trophy at each of the four editions following their initial victory.
- —Horseless Carriage Club of America touring eventsHCCA tour appearances
The current owner has driven the car on numerous HCCA tours across the western United States and beyond, including events in Washington State, California, and South Dakota.
Maintenance & restoration
- —Bodywork
A replacement body was fabricated in cast aluminum, commissioned by owner Rodney Flournoy and cast by the previous owner E.R. Bourne.
Exact date not recorded; occurred during Flournoy's ownership, after the car left Bourne's hands.
- —Modification
A hydraulic brake was fitted to the driveshaft to improve stopping reliability beyond the original two-wheel mechanical system.
Date and responsible party not specified.
- —Bodywork
Several body panels were repainted, new floor carpeting was installed, and the soft top was replaced with a new black canvas unit with red interior lining.
Carried out by or under the current owner; described as the only cosmetic improvements required during their tenure.
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