The 2020 Kia Optima is available as a 4-door, 5-seat sedan. Starting at $23,390, the 2020 Kia Optima LX (A6) is powered by a 2.4L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 24-mpg in the city and 32-mpg on the highway. The top of the line 2020 Kia Optima SE (A6), priced at $26,390, is powered by a 2.4L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 24-mpg in the city and 32-mpg on the highway.