The 2018 Kia Soul is available as a 4-door, 5-seat hatchback. Starting at $16,200, the 2018 Kia Soul Base (M6) is powered by a 1.6L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 24-mpg in the city and 30-mpg on the highway. The top of the line 2018KiaSoul! (A6) , priced at $ 22,900 , is powered by a 1.6L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 26-mpg in the city and 31-mpg on the highway.