Hyundai SONATA vs. Kia Optima

iSeeCars' unbiased and data-driven comparison of the Hyundai SONATA and Kia Optima contrasts the two cars across a broad spectrum of vehicle specifications to determine which car is better. In addition to comparing pricing and specs, iSeeCars uses all the ratings, rankings, and insights from its comprehensive analyses of each vehicle model, including calculations of reliability, safety, depreciation, value retention, and the vehicle's projected lifetime recalls (based on analyzing over 25 billion data points). This in-depth evaluation is used to identify which vehicle represents a better overall choice for shoppers who are considering both the Hyundai SONATA and the Kia Optima.

In comparing the Hyundai SONATA's and the Kia Optima's specifications and ratings, the Hyundai SONATA has the advantage in the areas of fuel efficiency, resale value, overall quality score and base engine power. The Kia Optima has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, reliability and interior volume. Based on this comparison of the Hyundai SONATA's and the Kia Optima's specifications and ratings, the Hyundai SONATA is a better car than the Kia Optima.

Pricing: A used 2020 Hyundai SONATA ranges from $13,531 to $23,975 while a used 2020 Kia Optima is priced between $10,496 to $21,500.

Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the Hyundai SONATA loses 46.2 percent of its value and the Kia Optima loses 47.6 percent of its value. This means the Hyundai SONATA retains 1.4 percentage points more of its value and has the advantage of higher resale value versus the Kia Optima.

Quality Rating: The iSeeCars Overall Quality rating for the Hyundai SONATA is 8.1 out of 10 while the Kia Optima's quality rating is 7.8 out of 10.

Reliability Rating: iSeeCars’ Reliability Rating for the Hyundai SONATA is 7.1 out of 10. For the Kia Optima the reliability rating is 7.3 out of 10. This gives the Kia Optima a slight advantage in reliability compared to the Hyundai SONATA.

Engine Power and Fuel Efficiency Comparison: For engine performance, the Hyundai SONATA’s base engine makes 191 horsepower, and the Kia Optima base engine makes 185 horsepower. The SONATA is rated to deliver an average of 31 miles per gallon, with a highway range of 588 miles. The Optima is rated to deliver an average of 27 miles per gallon, with a highway range of 592 miles.This gives the Hyundai SONATA the advantage in fuel efficiency and the Kia Optima the advantage in maximum range. Both models use regular unleaded.

Passenger Space Comparison: The Kia Optima has the advantage of offering more interior volume, reflected in more front shoulder room, rear shoulder room and rear leg room. The Hyundai SONATA, a midsize car, has the advantage in the areas of front head room, front leg room, rear head room, and cargo space.

Safety Ratings: When comparing crash test ratings from NHTSA, both the Hyundai SONATA and the Kia Optima have the same average safety rating of 5 out of 5 Stars.