Stealing away one of Germany's most prized automotive designers is only half the reason for Kia's recent success. There's an engineering and customer satisfaction story to tell too, and no car tells it better than the 2015 Kia Optima sedan. Four doors never looked so sexy – at least not wearing a sub-$23,000 price tag. From its aggressive front end to its distinctive silhouette, the Optima turns heads and flusters the competition. The Kia Optima is no one trick pony, either. Slick styling and a powerful engine usually require sacrificing some interior comfort to help keep the price in line, but not so with the Optima. Options like a panoramic moonroof and heated rear seats come as pleasant surprises, as does the Optima's 10-year/100,000-mile warranty.