Hyundai Sonata vs Kia Optima
The Hyundai Sonata is more fuel-efficient at 31 MPG combined, against 26 MPG for the Kia Optima. At EPA assumptions that is about $450 less in fuel per year. (Comparison uses each model's most efficient version.)
Side by side
| Hyundai Sonata | Kia Optima | |
|---|---|---|
| Complaints (NHTSA) | 1,679 | 1,406 |
| Most reported problem | Engine | Engine |
| Crashes and fires | 61 and 81 | 56 and 118 |
| Typical mileage at complaint | 54,000 miles | 80,000 miles |
| Recalls | 9 | 4 |
| Fuel economy, combined | 31 MPG | 26 MPG |
| City and highway | 28 and 36 | 23 and 33 |
| Yearly fuel cost (EPA) | $2,150 | $2,600 |
| NHTSA overall safety |
What the numbers say
NHTSA has 1,679 complaints for the Hyundai Sonata and 1,406 for the Kia Optima. Complaint counts depend heavily on how many of each vehicle were sold, so a higher count does not by itself mean a less reliable car.
NHTSA's overall safety ratings: 5 stars for the Hyundai Sonata, 5 stars for the Kia Optima.
Safety recalls on file: 9 for the Hyundai Sonata, 4 for the Kia Optima.