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Argon

Argon was an English automobile marque produced by the Grannaway Engineering Co. in London in 1908.

Last updated August 31, 2026

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Overview

Argon was an early twentieth-century English automobile marque associated with the Grannaway Engineering Co. of Earls Court, London. The make is documented as having produced a relatively large touring car in 1908, placing it within the period when Britain’s motor industry was shifting from experimental manufacture toward more formalized production of complete automobiles. The available historical record is limited, and Argon appears to have been a short-lived or minor marque rather than a sustained mass-market manufacturer. The Argon automobile used a 25-horsepower, six-cylinder Coventry-Simplex engine. Its configuration and description as a large touring car indicate that it was intended for buyers seeking a substantial open-road vehicle rather than a small city car or specialist competition machine. The use of a Coventry-Simplex power unit connected Argon to one of the better-known British engine suppliers of the era, whose engines were used by a number of emerging automobile manufacturers. The car was listed at £750 in 1908, a high price consistent with the cost of large, relatively powerful touring automobiles during the period. Argon was manufactured by Grannaway Engineering Co. at Earls Court, London S.W. The company’s broader activities and production scale are not well documented in the supplied historical material. A reference from 1905 stated that the company was planning a car called the Grannaway, but it is unclear whether that project reached production or whether it was directly related to the later Argon marque. This uncertainty makes it difficult to establish a continuous development path from the proposed Grannaway automobile to the Argon. No reliable evidence in the supplied sources establishes Argon’s founder, ownership structure, production volume, distribution network, export markets, later models, or exact date of discontinuation. The marque is therefore best understood as a documented but obscure British automobile make from the 1908 period. Its historical significance rests primarily on its example of early British automotive entrepreneurship: a London engineering company offering a large six-cylinder touring car under its own brand during an era of rapid experimentation and market formation. Argon should not be confused with other uses of the word “Argon,” including the chemical element or unrelated modern businesses and products.

History

Argon was an English automobile make produced in 1908 by the Grannaway Engineering Co., based in Earls Court, London S.W. It emerged during the formative years of the British motor industry, when engineering firms, cycle manufacturers, component suppliers, and small specialist companies were attempting to enter the automobile market. Many such ventures produced limited numbers of vehicles or operated for only a short period, and Argon appears to belong to this class of early, comparatively obscure British marque. The documented Argon was a fairly large touring car powered by a 25-horsepower six-cylinder engine supplied by Coventry-Simplex. Six-cylinder layouts were associated with smoothness and prestige, while a large touring-car body was suited to long-distance travel and affluent private motoring. The specification positioned the vehicle above the smallest and simplest cars then entering the market. The car was priced at £750 in 1908, although the available source does not provide production figures, sales data, or additional commercial context. Grannaway Engineering Co. operated from Earls Court in London. A 1905 reference reportedly stated that the company was planning an automobile called the Grannaway. It is not known from the available record whether that proposed car was completed, whether it entered series production, or whether it formed a direct precursor to the Argon. Consequently, the relationship between the proposed Grannaway and the Argon should remain tentative rather than being treated as an established model lineage. The surviving information does not identify Argon’s founder or principal engineers, nor does it describe the company’s manufacturing facilities, dealer network, export activity, body suppliers, transmission, chassis design, or subsequent models. There is also no confirmed evidence in the supplied material establishing the date on which the marque ceased production. The absence of later documentation suggests that Argon did not become a durable large-scale manufacturer, but the precise reason for its disappearance cannot be determined from the available sources. Historically, Argon is relevant as an example of the crowded and experimental nature of the British automobile sector in the first decade of the twentieth century. Its London origin, substantial six-cylinder specification, and connection with Coventry-Simplex illustrate how small engineering companies could assemble and market complete cars using engines from specialist suppliers. Beyond the 1908 touring car, however, the documented history of the Argon marque remains fragmentary.

  • 1908

    Argon touring car documented

    [1]

    Grannaway Engineering Co. of Earls Court, London, produced or marketed the Argon, a large touring car equipped with a 25 hp six-cylinder Coventry-Simplex engine.

  • 1905

    Grannaway automobile reportedly planned

    [1]

    A contemporary reference reportedly said that Grannaway Engineering Co. was planning a car called the Grannaway. The available record does not establish whether the project reached production or how it related to the later Argon.

Products and positioning

A premium-oriented early British touring-car marque focused on a large, powerful six-cylinder automobile.

  • Touring automobile · 1908

    Argon 25 hp six-cylinder touring car

    The documented Argon was a fairly large touring car made in 1908 by Grannaway Engineering Co. It used a 25-horsepower six-cylinder engine supplied by Coventry-Simplex, reflecting the period’s practice of combining a specialist engine with a locally engineered chassis and touring body. The car was listed at £750 in 1908, placing it in the expensive end of the early British automobile market. No reliable production volume, body variations, or later development details are identified in the available source.

Sources1 sources

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