The 2003 Kia Sorento is available as a 4-door, 5-seat sport utility. Starting at $19,995, the 2003 Kia Sorento LX 4x2 is powered by a 3.5L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 20-mpg on the highway. The top of the line 2003KiaSorentoEX 4x4 , priced at $ 24,700 , is powered by a 3.5L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 18-mpg on the highway.