Kia Optima Specifications Comparison By Trims

The Kia Optima typically comes with a 2.4-liter inline-four engine or an available 2.0-liter turbocharged inline-four engine, depending on the model year and trim level.

The 2.4 L Optima has approximately 185 horsepower.

The Kia Optima SX has 245 horsepower.

It's advisable to stay away from the 2011 Kia Optima due to reports of engine problems and poor reliability.