2015 Kia Optima LX Clean Title The 2015 Kia Optima LX is a reliable and fuel-efficient midsize sedan, offering a comfortable ride and a well-designed interior. It comes equipped with a smooth 4-cylinder engine, providing good performance for daily driving. The LX trim features practical amenities and modern technology, making it a great choice for commuting or longer trips. Known for its durability and value, the Optima LX remains a solid option in its class.