Compare images of 2017 Kia Optima and 2017 Nissan Altima by choosing the desired model and trim and then selecting the comparison image.
Two Sedans with more similarities, such as the body structure, market segment, starting price, fuel economy, ground shadow size, height, and maximum occupancy, than differences, like the horsepower. And finally, the 2017 Nissan Altima has a more powerful engine than the 2017 Kia Optima. Among similarities are the body structure, market segment, starting price, fuel economy, ground shadow size, height, and maximum occupancy.