Riley was a British automaker founded in 1890 by William Riley Jr., initially specializing in bicycles before transitioning into automotive production. Owned by various entities over its history, its most prominent period was under the ownership of the Nuffield Organization. Riley operated primarily in the UK but also had a presence in various international markets. The company was known for producing luxury saloon cars and sports cars with notable engineering advancements. Operations ceased in 1968 as it could not adapt to the changing automotive landscape.