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Standard Steam Car

The Standard Steam Car was a short-lived American steam automobile manufactured by the Standard Engineering Company of St. Louis from 1920 to 1921.

Last updated August 31, 2026

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Overview

The Standard Steam Car was an early-1920s American steam automobile associated with the Standard Engineering Company of St. Louis, Missouri. It was also known as the Scott-Newcomb, after L. L. Scott and E. C. Newcomb, who developed the vehicle. The car represented a late attempt to make steam propulsion commercially viable for passenger automobiles at a time when gasoline-powered vehicles were becoming increasingly dominant. The vehicle was designed around a twin-cylinder, horizontally arranged steam engine and used kerosene as its fuel. Its boiler pressure was stated to be 600 psi, reflecting the high-pressure engineering approach used by many steam-car developers to improve power, reduce boiler size, and make steam propulsion more practical for road use. The car was promoted as being capable of raising a full head of steam in approximately one minute, addressing one of the principal disadvantages of steam cars: the time required to build operating pressure before driving. Visually, the Standard Steam Car had a front condenser styled in a form that resembled a Rolls-Royce radiator. Its overall appearance was also reported to be similar to that of the Roamer, another automobile of the period. These styling choices placed the car within the conventional luxury-touring-car idiom of the early 1920s, even though its propulsion system was technically unusual. A company called the Scott-Newcomb Motor Car Company was formed for production. However, surviving historical accounts indicate that only one touring car is definitely known to have been built, while total production may have reached as many as five vehicles. The enterprise folded after this brief production effort, and the Standard Steam Car did not become an established manufacturer or enduring commercial brand. The car is therefore significant primarily as an example of the final phase of American steam-automobile experimentation. Its high-pressure boiler, kerosene fuel system, rapid steam-generation claim, and conventional touring-car styling illustrate the efforts made to overcome the operational limitations of steam propulsion. The vehicle is also documented in a three-page technical article from 1920 reproduced in Floyd Clymer's Historical Motor Scrapbook, Steam Car Edition, published in 1945. No evidence in the supplied sources indicates continuing production, a surviving corporate successor, or a modern commercial operation.

History

The Standard Steam Car emerged in the United States during the renewed interest in steam automobiles that continued into the early twentieth century. It was developed by L. L. Scott and E. C. Newcomb and became associated with the name Scott-Newcomb. Their design sought to address the practical objections that had limited the adoption of steam cars, especially the delay involved in producing enough steam pressure to begin a journey. The car used a twin-cylinder horizontal steam engine and burned kerosene. Its boiler pressure was reported as 600 psi, a specification indicative of a high-pressure steam system rather than the lower-pressure arrangements used in some earlier designs. The developers claimed that the boiler could raise a full head of steam in roughly one minute. If achieved in normal operation, this would have made the car more convenient than many earlier steam vehicles, whose start-up procedures could be lengthy and operationally demanding. In external design, the Standard Steam Car was made to resemble a conventional large touring automobile. Its front condenser had a radiator-like form compared with the shape associated with Rolls-Royce automobiles, and the vehicle was described as similar in appearance to the Roamer. The styling helped present the steam car as a conventional road vehicle rather than as an experimental machine, while the condenser formed an important part of the steam system by rejecting heat and condensing exhaust steam for reuse. Production arrangements were established through the Scott-Newcomb Motor Car Company. The manufacturing activity was carried out by the Standard Engineering Company of St. Louis, Missouri. The available historical account places production in 1920 and 1921. Output was extremely limited: one touring car is known to have been built, although estimates allow that as many as five vehicles may have been produced. The company subsequently folded, ending the project before it could develop into a sustainable automobile business. The Standard Steam Car's short production run reflects the difficult commercial environment facing steam automobiles. Steam propulsion offered smooth operation and technical possibilities such as flexible power delivery, but it also required specialized boilers, condensers, controls, and fuel systems. By the 1920s, gasoline automobiles benefited from established manufacturing scale and increasingly convenient starting and operating systems. Against that background, a small company with a very limited production run had little opportunity to establish a durable market position. The vehicle retained historical interest after production ended. A three-page article on its technical characteristics appeared in Floyd Clymer's Historical Motor Scrapbook, Steam Car Edition, published in 1945. The Standard Steam Car is consequently remembered less as a successful mass-market marque than as a rare American steam-car experiment from the transition period when steam, electric, and internal-combustion propulsion were still competing for a place in the automobile market.

  • 1921

    Production ends

    [1]

    The short manufacturing period ended after only one known touring car, with total production possibly reaching five vehicles before the associated company folded.

  • 1920

    Production begins

    [1]

    The Standard Engineering Company of St. Louis is reported to have manufactured the Standard Steam Car, also known as the Scott-Newcomb.

  • 1920

    Technical description published

    [1]

    A contemporary technical article on the Standard Steam Car appeared in 1920, later being reproduced in Floyd Clymer's 1945 Historical Motor Scrapbook, Steam Car Edition.

Products and positioning

A technically ambitious American steam automobile intended to combine rapid steam generation and high-pressure propulsion with the appearance of a conventional luxury touring car.

  • Steam automobile · 1920

    Standard Steam Car touring car

    A touring automobile powered by a twin-cylinder horizontal steam engine. It used kerosene fuel and was specified with a boiler pressure of 600 psi. Its front condenser had a radiator-like appearance associated with Rolls-Royce styling, while the overall vehicle was described as resembling the Roamer. The developers claimed that the system could raise a full head of steam in about one minute. Production was extremely limited, with one vehicle definitely known and a possible total of as many as five.

Sources1 sources

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