Kia’s uncontested star for 2012 is without a doubt the new Optima. Having replaced the now-defunct Magentis, the Optima struts superb lines designed by Peter Schreyer, Audi’s former chief designer, and his team. The LX and EX are equipped with a 2.4L naturally aspirated 4-cylinder engine, while the SX gets a turbo. The hybrid version adds another six horses to the base engine.