The 2006 Kia Rio is available as a 4-door, 5-seat sedan. Starting at $10,770, the 2006 Kia Rio Base (M5) is powered by a 1.6L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 32-mpg in the city and 35-mpg on the highway. The top of the line 2006KiaRioLX (A4) , priced at $ 13,545 , is powered by a 1.6L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 29-mpg in the city and 38-mpg on the highway.