Shoppers with an eye for design may want to take a long look at the Kia K5 (formerly the Kia Optima). This family car has some of the sportiest styling in the midsize sedan class, while the K5’s interior offers high-quality furnishings, a functional infotainment interface, and a spacious backseat. Kia's engine lineup provides performance ranging from energetic to high-speed, and some K5 sedans are available with all-wheel drive to help on winter days. The most striking thing about the Kia K5 is how much advanced driver assistance technology and warranty coverage you get for the price of admission.