The 2020 Kia Niro is available as a 4-door, 5-seat sport utility. Starting at $24,590, the 2020 Kia Niro LX is powered by a 1.6L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 51-mpg in the city and 46-mpg on the highway. The top of the line 2020KiaNiroEX Premium , priced at $ 32,790 , is powered by a 1.6L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 51-mpg in the city and 46-mpg on the highway.