I stumbled upon an article in the Ottawa Times about a company called Diamond Arrow that used a 6-cylinder Pierce-Arrow engine and manufactured an undetermined number of cars from 1909-1912.
Correction, they didn’t use a Pierce 6.
The fledgling firm produced two models — a 5-passenger Touring Car and a two-seater Roadster.
The Touring Car was a 4-cylinder, 38-horse power vehicle with a 3-speed transmission plus reverse. It had a Bosch dual system magneto and battery ignition. The body, which was on a 116-inch wheel base, was constructed by L. Duhamel Ltd of Ottawa, a local carriage maker. The upholstery was made from the finest, hand buffed, French leather. The car boasted 34-inch, white hickory, artillery-style wheels with Goodrich tires and a 14-gallon gas tank. It was also equipped with 8-inch Rushmore headlights, oil side and tail lamps, a horn, tools, and a tire repair kit.
The two-seat Roadster had a 4-cylinder engine, 45-horsepower vehicle with a 3-speed transmission plus reverse. Its 114-inches wheel base was marginally shorter than that of the Touring Car. Its body was also made by L. Duhamel, and ran on 34-inch, artillery-style wheels with Goodrich tires.
Both were clearly luxury vehicles, bearing a price tag of about $3,000 — a huge sum of money in those days when a Ford sold for $775.
Much was made of the fact that its engine was the same as the one used for several years by the Pierce-Arrow automobile made in Buffalo, New York. (Pierce-Arrow began using a six-cylinder engine in 1910.) Indeed, the name of the car, “Diamond Arrow,” may well have been an attempt to associate the Ottawa car with the very famous and successful Pierce-Arrow brand. The Diamond Arrow Roadster also looked very much like the 1909 Pierce-Arrow Roadster.