2020 head-to-head · Large Car
2020 Hyundai Sonata vs Kia Optima
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.10/gal regular gas, the most efficient 2020 Hyundai Sonata (32 MPG) costs about $1,453 a year to fuel and the 2020 Kia Optima (31 MPG) about $1,500.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Hyundai Sonata
- Kia Optima
Side by side
| Hyundai Sonata | Kia Optima | |
|---|---|---|
| $1,453 | Your annual fuel cost | $1,500 |
| 32 MPG | Combined efficiency | 31 MPG |
| 28 MPG | City | 27 MPG |
| 38 MPG | Highway | 37 MPG |
| 105 cu ft | Passenger volume | 105 cu ft |
| 16 cu ft | Cargo volume | 16 cu ft |
| 282 g/mi | Tailpipe CO₂ (g/mi) | 292 g/mi |
| 7/10 | EPA fuel economy score | 7/10 |
| 7/10 | EPA greenhouse gas score | 7/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 2.5L 4-cyl | Engine / motor | 1.6L 4-cyl turbo |
| 8-speed automatic | Transmission | 7-speed dual-clutch |
| FWD | Drivetrain | FWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Hyundai Sonata vs Kia Optima across model years
- Hyundai Sonata
- Kia Optima
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 32 2020 large cars, the Hyundai Sonata ranks 7th and the Kia Optima 8th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2020 Hyundai Sonata or the 2020 Kia Optima?
Measured by cost to drive, the Hyundai Sonata. The Hyundai Sonata is rated 32 MPG combined and the Kia Optima 31 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2020 Hyundai Sonata vs. the Kia Optima per year?
At 15,000 miles a year with $3.10/gal regular gas, about $1,453 for the Hyundai Sonata and $1,500 for the Kia Optima.
Hyundai Sonata vs Kia Optima in other years
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