Kia pulled out all the stops for this replacement for its long-running Optima midsize sedan, adding performance and optional all-wheel drive. The Optima was a bellwether of Kia’s steady march from econo-brand to a design and value leader. The K5 continues that, generating interest in the sedan as SUVs surged to 65% of Kia’s total sales. K5 prices start at $23,495.