De Dion-Bouton was one of the most influential names in the early automotive industry, shaping the very DNA of what cars would become. Founded in 1883 by Count Albert de Dion, Georges Bouton, and Charles Trépardoux, the company started out with steam-powered vehicles, a technology that was at the forefront of personal transportation in the 19th century. Their early creation, the La Marquise (1884), is considered the oldest running car in the world today, and it even won the world’s first motor race in 1887—albeit as the only competitor. However, the company's true revolution came when they shifted from steam to internal combustion engines in the late 1890s.

By the dawn of the 20th century, De Dion-Bouton was the largest manufacturer of automobiles in the world and a leader in engine technology. Their compact and reliable high-revving single-cylinder engines, mounted at the rear, became the go-to powerplants for hundreds of other vehicle makers across Europe and even the United States. These engines powered everything from tricycles to early motorcars, and their lightweight design and durability made them a favorite for aspiring manufacturers. In fact, the De Dion-Bouton engine can be found at the heart of numerous early vehicles made by brands that would later become giants—or disappear entirely.

One of the company's most lasting technical legacies is the De Dion axle, a suspension innovation that cleverly combined the benefits of independent suspension with the simplicity of a live axle. This allowed for better road handling while maintaining durability, and versions of the De Dion layout are still used in performance and utility vehicles today. Despite peaking in the early 1900s, De Dion-Bouton gradually faded into obscurity after World War I, struggling to adapt to mass production and fierce competition from newer manufacturers like Renault, Citroën, and Ford. Yet, their innovations laid the groundwork for modern automotive engineering and earned them a permanent chapter in motoring history.