Kia is driving up hill, but can it get to the top? Executives of the South Korean brand hope so. The company has plans to introduce a full-sized, rear-wheel-drive luxury sedan called the K900 next year in the U.S., per dealers who were at the yearly dealer confab in Vegas. Yes, the $50,000 to $70,000 car is a Kia, the most expensive nameplate for the brand Kia has ever sold on these shores.