What's the fastest KIA you can buy today? That seems like a simple question but KIA doesn't exactly build sports cars. In fact the fast KIA in the land is one of two KIA cars that share an almost identical 2.0L direct injected turbo. So what's the fastest KIA...at least from 0-60 MPH? Is it the all-wheel-drive KIA Sportage Turbo SX or the front-wheel-drive KIA Optima Turbo. The Optima has a few more horses while the Sportage has a less pounds in curb weight. Check out this video to find out.