Certus (United Kingdom) - AllCarIndex

Certus Gearless Co. Ltd was a British automobile manufacturer based in London, active between 1907 and 1908. The company focused on producing vehicles that showcased the principle of friction drive, a technology that was innovative for its time.

During its brief existence, Certus manufactured both 2-cylinder and 4-cylinder cars. The 4-cylinder models were equipped with a 3-liter Aster engine, which contributed to the performance of these vehicles. However, the primary aim of the company appeared to be demonstrating the friction drive system rather than establishing a viable commercial enterprise.

Despite its short operational period, Certus contributed to the exploration of alternative drive systems in early automotive engineering. The company's efforts reflected the experimental nature of the automotive industry during the early 20th century.