In 1886 Gottlieb Daimler fitted a horse carriage with his four-stroke engine. In 1889, he built two vehicles from scratch as automobiles, with several innovations. From 1890 to 1895 about thirty vehicles were built by Daimler and his assistant, Wilhelm Maybach, either at the Daimler works or in the Hotel Hermann, where they set up shop after falling out with their backers. Benz and Daimler, seem to have been unaware of each other's early work and worked independently. Daimler died in 1900. During the First World War, Benz suggested a co-operative effort between the two companies, but it was not until 1926 that the they united under the name of Daimler-Benz with a commitment to remain together under that name until the year 2000.

In 1890, Emile Levassor and Armand Peugeot of France began producing vehicles with Daimler engines, and so laid the foundation of the motor industry in France. They were inspired by Daimler's Stahlradwagen of 1889, which was exhibited in Paris in 1889.

The first American car with a gasoline internal combustion engine supposedly was designed in 1877 by George Baldwin Selden of Rochester, New York, who applied for a patent on an automobile in 1879. Selden did not build an automobile until 1905, when he was forced to do so, due to a lawsuit threatening the legality of his patent because the subject had never been built.

After building the 1877 design in 1905, Selden received his patent and later sued the Ford Motor Company for infringing upon his patent. Henry Ford was notorious for opposing the American patent system and Selden's case against Ford went all the way to the Supreme Court, which ruled that Ford, and anyone else, was free to build automobiles without paying royalties to Selden, since automobile technology had improved so significantly since the design of Selden's patent, that no one was building according to his early designs*

*source: Wikipedia, used with permission