Kia Optima is based on the platform of the current Hyundai Sonata and shares its engine and suspension layout; no doubt if you like one, you'll like the other. But the Optima shares no body panels with the Sonata and is distinctive in design and features. A rebadged Sonata it isn't.
For 2002, the Optima's optional V6 increased to 2.7 liters. And prices have dropped.