It's been three years since Kia pulled the wraps off its conceptual Soul'ster convertible truck at the 2009 Detroit Motor Show. Kia fueled some rumors at the time that it was considering a production version of the car but never followed up on it. Until today, that is. Unexpectedly, in the press statement on the Track'ster Concept that's scheduled to debut at the Chicago Auto Show next week, Kia