The 2012 Kia Rio is available as a 4-door, 5-seat sedan. Starting at $13,400, the 2012 Kia Rio LX (M6) 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 2012KiaRioSX (A6) , priced at $ 17,500 , 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 36-mpg on the highway.