The 2018 Kia Rio is available as a 4-door, 5-seat sedan. Starting at $13,900, the 2018 Kia Rio LX (M6) Sedan is powered by a 1.6L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 29-mpg in the city and 37-mpg on the highway. The top of the line 2018KiaRioEX (A6) Hatchback , priced at $ 18,700 , is powered by a 1.6L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 28-mpg in the city and 37-mpg on the highway.