Large cars · Gasoline · model year 2026
Genesis G80 vs Hyundai Sonata
For model year 2026, the Hyundai Sonata gets 32 MPG combined and the Genesis G80 23: a 9 MPG lead, or 39% on the lower figure.
Side by side
| Measure | Genesis G80 | Hyundai Sonata |
|---|---|---|
| Combined fuel economy (best version) | 23 MPG | 32 MPG |
| City | 20 MPG | 28 MPG |
| Highway | 29 MPG | 38 MPG |
| Annual fuel cost | $3,550 | $2,100 |
| Tailpipe CO2 | 382 g/mile | 281 g/mile |
| Lowest rated version | 18 MPG | 27 MPG |
| Rated versions | 2 | 4 |
| Rank in class (best combined rating) | 15th of 25 | 9th of 25 |
| Class | Large cars | Large cars |
| Powertrain | Gasoline | Gasoline |
Better figure in bold; each model's most efficient version.
Fuel economy and cost
The two use different fuels (premium gasoline and regular gasoline), so the price per unit differs. Under the file's assumptions the Hyundai Sonata costs about $2,100 a year and the Genesis G80 about $3,550, a difference of $1,450.
Where each one ranks
Within their class the Genesis G80 is tied for 15th of 25 large cars, in the lower half. The Hyundai Sonata is tied for 9th of 25 large cars, in the upper half.
The Genesis G80 has 2 rated versions, from 18 to 23 MPG. The Hyundai Sonata has 4, from 27 to 32 MPG. For the most efficient versions, the Genesis G80 is rated 9 higher on the highway (29 against 20), while the Hyundai Sonata is rated 10 higher on the highway (38 against 28).
The two versions closest in rating are G80 AWD: 2.5 L, 4 cyl, Automatic (S8), AWD at 23 MPG and Sonata AWD: 2.5 L, 4 cyl, Automatic (S8), AWD at 27, 4 MPG apart.
Ratings by model year
Both models are in the data for 8 model years, 2019 to 2026. The Genesis G80 has the higher best rating in 0 of them and the Hyundai Sonata in 8. The widest gap, 11 MPG, was in 2020, when the Hyundai Sonata led.
| Model year | Genesis G80 | Hyundai Sonata | Gap |
|---|---|---|---|
| 2026 | 23 | 32 | -9 |
| 2025 | 24 | 32 | -8 |
| 2024 | 25 | 29 | -4 |
| 2023 | 26 | 32 | -6 |
| 2022 | 26 | 32 | -6 |
| 2021 | 26 | 32 | -6 |
| 2020 | 21 | 32 | -11 |
| 2019 | 21 | 31 | -10 |