The Riley Unknown is a distinctive model from the historic British marque Riley, renowned for its blend of classic design and engineering craftsmanship. Established in the early 20th century, Riley has a rich heritage of producing stylish and reliable vehicles, with the Unknown representing a notable chapter in their legacy. Manufactured during a period of innovation, this model features unique specifications that set it apart, including its engine configuration and design details. While precise manufacturing years and technical specifics may vary, the Riley Unknown remains a symbol of British motoring heritage, appreciated by enthusiasts for its timeless appeal and engineering ingenuity.