A new mid-size sedan named the K5 debuted for 2021, taking the Optima’s place in Kia’s lineup. The final-generation Optima offered several premium features, as well as two available ...

The Kia K5 debuted for 2021 as the replacement for the Optima mid-size sedan. The K5 name was borrowed from the South Korean version of the car, better aligning the U.S. version with Kia’s ...

Upon first glance, the 2021 Kia K5 looks a little juvenile ... t mean being young and busy is a bad thing. Out with the Kia Optima, in with the K5 When the Kia Optima midsize sedan died after ...