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Brock Motors

Brock Motors was a short-lived Canadian automobile manufacturer founded in Ontario in 1921 that produced a single known vehicle, the Brock Six.

Last updated August 31, 2026

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Overview

Brock Motors was a Canadian automobile manufacturing venture established in Amherstburg, Ontario, in 1921 by William Riley Stansell. The business initially operated under the name Stansell Motors Ltd., but was renamed Brock Motors Ltd. before automobile production began. Its factory occupied premises that had previously been used by the Amherst automobile enterprise, placing the company within the early twentieth-century development of automobile manufacturing in Ontario. The company announced an ambitious production objective of 10,000 vehicles per year and sought financial support through a share offering intended to attract approximately 2,000 stockholders. These plans reflected the optimism surrounding automobile manufacturing in Canada during the period, when small firms attempted to establish locally produced vehicles in a market increasingly shaped by larger American manufacturers and expanding mass-production methods. Brock Motors ultimately built only one known automobile: the Brock Six. It was a large touring car designed to carry five passengers and powered by a 55-brake-horsepower Continental engine. The vehicle represented a conventional early-1920s touring-car format, combining a relatively spacious body with an externally sourced engine rather than a fully integrated proprietary powertrain. No sustained production program followed, and the company closed during 1921, the same year in which it had been founded and renamed. After the failure of Brock Motors, Stansell moved to London, Ontario, where he manufactured another automobile known as the London Six. That later activity was separate from Brock Motors, although it provides context for Stansell's continued involvement in the early Canadian automotive industry. Brock Motors therefore occupies a minor but documented place in Canadian motoring history: it illustrates the gap that could exist between ambitious production announcements, capital-raising plans, and the practical difficulties of launching an automobile manufacturer. The brand is defunct, has no known current commercial operations, and is primarily of historical interest.

History

Brock Motors emerged in 1921 during a period when automobile manufacturing was expanding across Canada but remained difficult for small independent firms to sustain. William Riley Stansell founded the enterprise in Amherstburg, Ontario, using premises that had previously housed the Amherst automobile operation. The company was first organized as Stansell Motors Ltd. and was subsequently renamed Brock Motors Ltd. before production commenced. The renamed company presented an ambitious plan. It announced an intended annual output of 10,000 vehicles and proposed financing the project through a share float aimed at 2,000 stockholders. Such plans indicate that Brock Motors sought to present itself as a substantial manufacturing concern rather than a small experimental workshop. However, the available historical record does not show that the proposed production volume was approached. Only one known model was produced, the Brock Six. This was a large five-passenger touring automobile fitted with a Continental engine rated at 55 brake horsepower. The use of a Continental power unit was consistent with the practice of smaller automobile manufacturers that relied on components from established suppliers while concentrating their own efforts on assembly, bodywork, and marketing. Brock Motors closed in 1921, making its operating life exceptionally brief. The closure occurred before the company could develop a durable product range, establish large-scale distribution, or turn its capital-raising and production plans into a continuing business. Afterward, Stansell relocated to London, Ontario, and manufactured the London Six. That subsequent vehicle is associated with Stansell's later work rather than with Brock Motors itself. The history of Brock Motors is consequently a case study in the fragility of early independent automobile ventures. Its significance lies less in commercial scale than in its evidence of Canadian attempts to create domestic automobile manufacturers during the formative years of the industry. Because the company produced only one known car and closed in its founding year, the Brock Six is the principal surviving marker of the brand.

  • 1921

    Stansell Motors is founded

    [1]

    William Riley Stansell founded Stansell Motors Ltd. in Amherstburg, Ontario, at a factory site previously associated with the Amherst automobile.

  • 1921

    The company becomes Brock Motors

    [1]

    Before automobile production began, Stansell Motors Ltd. was renamed Brock Motors Ltd.

  • 1921

    Production target announced

    [1]

    Brock Motors announced an intended production capacity of 10,000 vehicles per year and planned to finance the project through a share offering aimed at 2,000 stockholders.

  • 1921

    The Brock Six is produced

    [1]

    The company produced one known Brock Six, a five-passenger touring car powered by a 55-brake-horsepower Continental engine.

  • 1921

    Brock Motors closes

    [1]

    The company ceased operations during its founding year after producing only one known automobile.

  • 1921

    Stansell moves to London, Ontario

    [1]

    Following the closure, William Riley Stansell moved to London, Ontario, where he manufactured the London Six.

Products and positioning

An early Canadian automobile manufacturer positioned around locally produced passenger touring cars, although the company ceased operations before establishing meaningful commercial-scale production.

  • Passenger automobile · 1921

    Brock Six

    The Brock Six was the only known automobile produced by Brock Motors. It was a large touring car with seating for five passengers and a 55-brake-horsepower Continental engine. The model embodied the conventional touring-car layout used by many early automobile manufacturers, but it did not enter sustained production because Brock Motors closed in 1921.

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