 I bought my 2012 Kia Optima SX in October of 2014 with 42,000 miles. Now...November of 2015, I hit 63,000 miles and the engine just blew on the expressway. No Kia warranty as it expired, relying on a 3rd party warranty group.  I provided the warranty company with all my service, oil change and maint records. It's taking a while to get updates.  Future Kia buyers, ensure you do ample research and read owner reviews. I will never buy Kia again due to the fact that my model was very well maintained with Kia service dept and general car owner maintenance duties. I have friends who own Kia model between 2012-2014 and they to have had engine blew... One model Being Kia Soul. Very disappointed.