" The 2011 Kia Optima is at once classy and striking. There's just enough detailing to keep it interesting without looking gaudy. Kia sent us an Optima EX with standard 17-inch alloy wheels, chrome accents on the door handles, body color mirrors and chrome exhaust tips added to the crisp bodywork. The windshield header's echo of the "tabbed" grille is the designer's way of saying "Hey, we thought about this." Clean and inoffensive…