Riley was a British motorcar and bicycle manufacturer from 1890. The company became part of the Nuffield Organisation in 1938 and was later merged into British Leyland. Today, the trademark is owned by BMW.
Percy Riley moved from producing motorcycles to his first prototype four-wheeled quadricycle. In 1900, Riley sold a single three-wheeled automobile.
In 1903, Percy Riley began the Riley Engine Company, also in Coventry. At first, he simply supplied engines for Riley motorcycles, but the company soon began to focus on four-wheeled automobiles. Their Vee-Twin Tourer prototype, produced in 1905, can be considered the first proper Riley car. The Engine Company expanded the next year, and Riley Cycle halted motorcycle production in 1907 to focus on automobiles. Bicycle production also ceased in 1911.