For its first quarter-century in North America, the Korean auto industry focused on producing Toyohonda-style appliances, for less. But Hyundai and Kia are no longer content with selling cars based on a low price and a long warranty. They want to make cars that appeal to the heart as much as the head. In case the car's styling didn't get this point across, Kia labeled one such effort the Soul ! (with the ! denoting the top trim). How deep is its appeal?