“Despite its being the quickest Kia we’ve ever tested -- sprinting to 60 mph in 5.5 seconds and covering the quarter-mile in 14.1 at 101 mph -- the K900 never feels particularly athletic or engaging. The powertrain purrs smoothly underhood and rarely calls attention to itself, the resulting serenity being ideal for cruising. A button on the console allows the driver to toggle among Sport, Normal, and Eco driving modes, which slightly alter throttle response, shift action, damper settings, and steering effort, but it’s best to leave it in the default setup.
The rest of the Kia’s performance figures -- a modest 0.80 g of lateral grip and a 176-foot stop from 70 mph on 19-inch, all-season Hankook Optimo rubber -- are merely adequate and reinforce the car’s indifference to driver involvement. The 4,664-pound K900 floats down the road with noticeable -- some might say nautical -- pitch, roll, and dive motions. The steering lacks self-centering, necessitating frequent corrections on the highway. Very little makes its way up the steering column, save for some occasional shakes and quivers over rough pavement. Our observed fuel economy of 18 mpg is in line with the combined EPA rating on the window sticker.” -- Car and Driver