2025 Hyundai Sonata FWD vs 2026 Kia K5 w/Stop-Start
| EPA figure | 2025 Hyundai Sonata FWD | 2026 Kia K5 w/Stop-Start |
|---|---|---|
| Model year | 2025 | 2026 |
| Body · drive | Large · Front-Wheel Drive · Gas | Large · Front-Wheel Drive · Gas |
| Combined MPG | 29 | 30 |
| City / highway MPG | 25 / 36 | 26 / 37 |
| Fuel a year | $2,300 | $2,250 |
| Tailpipe CO₂ (g/mi) | 305 | 298 |
| Engine | 2.5 L 4-cyl | 2.5 L 4-cyl |
| Transmission | Automatic (S8) | Automatic (S8) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.