The Kia Optima still gets some of the best fuel economy ratings among mid-size sedans.
Non-hybrid versions earn as high as 35 mpg--excellent numbers for such a large, roomy sedan. And throughout the lineup, fuel economy for the 2013 Optima is great, especially if you place the priority on highway mileage. EPA ratings are right up at the top of the class—at 24 mpg city, 35 highway with the automatic, or 22/34 for the Turbo. The Optima Hybrid now earns 36/40 mpg or 38 mpg combined in base trim, now that its hybrid system has been improved--and after an overstatement that was later corrected by the EPA and by Kia (explained below).
The 2013 Optima Hybrid is one of the vehicles found to have overstated fuel-economy numbers. The EPA on a confirmation check found the Optima Hybrid's actual tested fuel economy to be 34/39 mpg or 36 mpg combined--1 mpg below the 37 mpg Combined and 35/40-mpg numbers originally reported. Owners can register with Kia to receive reimbursement for the gas consumed above and beyond expected levels; more details are found at KiaMPGInfo.com.