The 2011 Kia Rio is available as a 4-door, 5-seat sedan. Starting at $12,295, the 2011 Kia Rio Base (M5) is powered by a 1.6L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 28-mpg in the city and 34-mpg on the highway. The top of the line 2011KiaRioSX (A4) , priced at $ 16,095 , is powered by a 1.6L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 27-mpg in the city and 36-mpg on the highway.