2012 Kia Optima Review: An Unreliable Car With Costly Issues - VehicleHistory
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2017 Kia Optima Hybrid Consumer Reviews | Cars.com
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2018 Kia Optima: Beauty and Brains - The Car Guide
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2019 Kia Optima Review | Expert Reviews | J.D. Power
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2011 Kia Optima EX review: 2011 Kia Optima EX - Roadshow
