Two Sedans with some similarities, but otherwise different in most aspects such as the starting price, horsepower, fuel economy, and ground shadow size. First of all, the 2015 Acura TLX is priced $17,555 lower compared to the base MSRP of the 2016 Kia K900. Also, the 2016 K900 has a more powerful engine than the 2015 TLX, and it gets 7.5 fewer miles on a gallon of fuel. And finally, the TLX is slightly smaller than the K900. Among similarities are the body structure, market segment, height, and maximum occupancy.