Kia Motors America announced September sales of 51,503 vehicles with the brand's popular Sportage CUV and Niro hybrid crossover posting gains of 17- and 13-percent, respectively, over the same period last year. In addition, the Optima midsize sedan also posted double-digit growth with a 10-percent increase in sales over September, 2017.

"As we begin the fourth and final quarter of 2018, three of Kia's most popular models Optima, Niro and Sportage posted double-digit sales gains year-over-year," said Bill Peffer, vice president, sales operations, Kia Motors America. "We are confident that the end of 2018 will be a strong one for Kia and that momentum we build now will continue well into the 2019 calendar year."