The American Motor Car Company, founded in Indianapolis, Indiana in 1906, quickly distinguished itself in the early automotive industry with its innovative underslung chassis design.
Although production ceased by 1913, the company made a lasting impression during the Brass Era by prioritizing vehicle stability, performance, and visual distinction. Learn how American Underslung models became icons of early 20th-century engineering and remain revered by collectors today.
Key Takeaways
- The American Motor Car Company was founded in Indianapolis in 1906, not by Harry C. Stutz but by local businessmen including Frank W. Sommer.
- It became known for its innovative underslung chassis design, which lowered the center of gravity and improved vehicle stability and appearance.
- Fred L. Tone, the company’s chief engineer, introduced the underslung design by 1907, making it a signature feature of American Underslung models like the Traveler and Tourist.
- The company reorganized as the American Motor Company in 1911, but financial troubles persisted, leading to bankruptcy in November 1913.
- Though production numbers were modest, American Underslung cars are highly prized today for their engineering and are showcased at premier restoration events like the Pebble Beach Concours d’Elegance.
The Foundation and Early Years
The American Motor Car Company was established in Indianapolis, Indiana, in 1906 during a transformative period in the U.S. automotive industry. Harry C. Stutz, an emerging engineer and entrepreneur who would later found the Stutz Motor Car Company, was instrumental in designing the first vehicle for the new enterprise. His early engineering contributions helped shape the foundation of the company’s design philosophy.
However, Stutz’s involvement was brief. He departed shortly after the company’s founding, and Fred L. Tone assumed the role of chief engineer later in 1906. Tone made a decisive mark by introducing a bold innovation: the underslung chassis. This design repositioned the chassis below the axles—contrary to the conventional layout—resulting in a lower center of gravity, improved stability, and enhanced handling. Tone also implemented a semi-elliptic leaf spring suspension system mounted above the frame, which further improved ride quality and control.
This engineering direction would soon become the company’s hallmark, setting the stage for the launch of its most iconic models.
Interestingly, General Motors History shows that William C. Durant attempted to acquire Ford in 1907, a time when many car companies were vying for dominance in the industry.
Initially, their engines boasted 40 horsepower from a 6.4L displacement, later upgraded to a robust 7.8L, producing 50bhp. Despite these advancements, financial struggles led to a rebranding in 1911, ultimately ending in bankruptcy by November 1913.
Innovative Engineering and Design

The defining feature of American Motor Car Company’s vehicles was the underslung chassis—an innovation credited to Fred L. Tone. Introduced in 1907, this design positioned the frame below the axles rather than above, lowering the car’s center of gravity and dramatically enhancing its road stability and cornering performance.
The underslung design was complemented by large-diameter wheels, which maintained road clearance and gave the vehicles a bold, aggressive profile. Tone’s decision to mount a semi-elliptic leaf spring suspension system above the axles further contributed to ride comfort and control, making American vehicles some of the most distinctive and advanced of the Brass Era.
As the automotive industry evolved, innovations like the internal combustion engine played a crucial role in advancing vehicle design and performance.
Production Models and Features
American’s most iconic offerings—such as the Traveler, Tourist, and Roadster—were launched under the “American Underslung” label and quickly gained attention for their performance and styling.
By 1910, the company had transitioned to six-cylinder engines, increasing its horsepower to stay competitive in the high-performance luxury segment. The vehicles were marketed to upper-class consumers, emphasizing refinement, engineering, and exclusivity rather than affordability.
Despite the admiration these models received, American’s strategy focused on quality over quantity. As a result, production volumes remained low, especially when compared to emerging mass-production rivals like Ford. The brand occupied a premium niche in the market, appreciated for its distinctive looks and superior driving characteristics.
Challenges and Financial Struggles
While American Motor Car Company earned engineering accolades, it struggled financially. By 1911, the company underwent a reorganization and adopted a new name: the American Motor Company. This move was intended to improve operational efficiency and streamline management, but deeper market forces continued to work against the firm.
The growing dominance of manufacturers using mass-production techniques, most notably Ford, put immense pressure on boutique automakers. American’s vehicles, though technically impressive, were significantly more expensive and produced in limited numbers—making it hard to compete in a market shifting toward affordability and scale.
By late 1913, the company was no longer able to sustain operations and filed for bankruptcy, ending production of the American underslung.
The Impact of the Underslung Design

The underslung chassis, introduced by chief engineer Fred L. Tone in 1907, remains one of the most distinctive engineering achievements of the early automotive era. By mounting the chassis beneath the axles—rather than above, as was the norm—American Motor Car Company produced vehicles with a much lower center of gravity, offering superior handling and improved stability on the uneven roads of the time.
This design also contributed to the vehicle’s unique stance: long, low-slung, and aggressive—an aesthetic that distinguished the company’s cars from their high-riding contemporaries. Combined with large-diameter wheels and a semi-elliptic leaf spring suspension system mounted above the axles, the American Underslung models provided both a smoother ride and enhanced cornering performance.
Models like the Traveler, Tourist, and Roadster showcased this innovation, helping American Motor earn a reputation for engineering excellence during the Brass Era.
Transition to American Motor Company
In 1911, the company underwent a formal reorganization and changed its name to the American Motor Company, in an effort to streamline operations and stabilize its finances.
This rebranding came at a time when the American auto industry was rapidly shifting toward mass production and affordability, driven by companies like Ford. While American remained committed to low-volume, high-quality vehicles, this approach proved unsustainable in a market increasingly dominated by lower-cost competitors.
Though exact production figures are uncertain, estimates suggest the company built several thousand vehicles over its lifespan—not the 45,000 sometimes incorrectly cited. Ultimately, the company filed for bankruptcy in late 1913, bringing an end to its production of the American Underslung.
Legacy and Historical Significance
Although its time in the spotlight was brief, the American Motor Car Company made a lasting contribution to early automotive engineering. The underslung chassis design, conceived by Fred L. Tone, stands as a hallmark of pre-World War I automotive innovation. It was a functional and aesthetic breakthrough—lowering the vehicle’s center of gravity while introducing a bold, streamlined profile that helped redefine the visual language of cars in the 1900s.
The company’s vehicles, including the American Traveler and Roadster, were admired for their performance and styling. Though American Motor did not pioneer technologies like electric starters or lights, its influence was nonetheless felt in its focus on driving dynamics and vehicle architecture.
Today, the brand is remembered as a symbol of Brass Era creativity, and its contributions remain celebrated by collectors and historians alike.