Kia is a South Korean car manufacturer that produces a variety of vehicles, including sedans. The two Kia sedans featured in this crossword are the Optima and the Rio. The Optima is a mid-size sedan with a 6-letter name, while the Rio is a subcompact sedan with a 3-letter name. Both models offer a range of features and options, making them popular choices for those looking for a reliable and affordable sedan.