The 2016 Kia K900 is available as a 4-door, 5-seat sedan. Starting at $49,000, the 2016 Kia K900 Premium 3.8L is powered by a 3.8L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 26-mpg on the highway. The top of the line 2016KiaK900Luxury 3.8L , priced at $ 54,900 , is powered by a 3.8L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 26-mpg on the highway.