2018 Hyundai SONATA vs. 2018 Kia Optima

iSeeCars' unbiased and data-driven comparison of the 2018 Hyundai SONATA and 2018 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 2018 Hyundai SONATA and the 2018 Kia Optima.

When we compare the 2018 Hyundai SONATA's and the 2018 Kia Optima's specifications and ratings, the 2018 Hyundai SONATA has the advantage in the areas of fuel efficiency, resale value, interior volume and overall quality score. The 2018 Kia Optima has the advantage in the areas of typical lower range of pricing for used cars, and reliability. The 2018 Hyundai SONATA and 2018 Kia Optima have the same base engine power. Based on this comparison of the 2018 Hyundai SONATA's and the 2018 Kia Optima's specifications and ratings, the 2018 Hyundai SONATA is a better car than the 2018 Kia Optima.

Pricing: A used 2018 Hyundai SONATA ranges from $8,994 to $18,816 while a used 2018 Kia Optima is priced between $7,990 to $17,578.

Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the 2018 Hyundai SONATA loses 46.2 percent of its value and the 2018 Kia Optima loses 47.6 percent of its value. This means the 2018 Hyundai SONATA retains 1.4 percentage points more of its value and has the advantage of higher resale value versus the 2018 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 base engine of both the 2018 Hyundai SONATA and the 2018 Kia Optima makes 185 horsepower. The SONATA is rated to deliver an average of 29 miles per gallon, with a highway range of 666 miles. The Optima is rated to deliver an average of 28 miles per gallon, with a highway range of 629 miles. This gives the 2018 Hyundai SONATA the fuel efficiency and maximum range advantage over the 2018 Kia Optima. Both models use regular unleaded.

Passenger Space Comparison: The 2018 Hyundai SONATA has the advantage of offering more interior volume, reflected in more front head room, rear head room, rear shoulder room, and cargo space. The 2018 Kia Optima has the advantage in the area of front shoulder room. The 2018 Hyundai SONATA and 2018 Kia Optima are comparable in regards to front leg room and rear leg room.

Safety Ratings: When comparing crash test ratings from NHTSA, both the 2018 Hyundai SONATA and the 2018 Kia Optima have the same average safety rating of 5 out of 5 Stars.