does the kia optima still have the engine problems as in previous years
Nobody knows. It has the same Theta II engine that has been problematic. Hyundai/Kia claim they improved the engine, but at the meantime I think the 2020 would get a new engine.
If I was in the market for a new car, I would put that engine on the negative column of things to consider.
I thank you for all of your help, just as I thought so I will be looking for another make and most probably Toyota Camry.