Chicago Show 2012 Highlights: 2012 Kia Optima SX

Kia unveiled the 2012 Optima SX Limited sedan today at the Chicago auto show; it’s a new, fully loaded trim that sits at the top of the mid-size Optima range. It’s true that family-sedan news hardly stokes the enthusiast fire, but the Limited is based on one of the nicest-driving mainstream four-doors on the market: the turbocharged Optima SX. The luxurious Limited is basically an SX at which Kia