Kia Motors, South Korea's No. 2 carmaker, shipped 1.08 million units of the K5, sold as the Optima in the U.S., between 2000 and last year, according the data.
Last year alone, Kia Motors sold 159,414 K5s in the U.S., with the sedan becoming Kia's top-selling model in the market for four years running.
Kia Motors said it expects strong sales of the K5 in the U.S. this year since shipments of its new version, which hit the American market late last year, are likely to go into high gear. (Yonhap)