2026 GMC Sierra 4WD vs 2027 Nissan Frontier 4WD PRO4X
| EPA figure | 2026 GMC Sierra 4WD | 2027 Nissan Frontier 4WD PRO4X |
|---|---|---|
| Model year | 2026 | 2027 |
| Body · drive | Pickup · 4-Wheel Drive · Gas | Pickup · Part-time 4-Wheel Drive · Gas |
| Combined MPG | 18 | 18 |
| City / highway MPG | 17 / 20 | 16 / 20 |
| Fuel a year | $3,700 | $3,700 |
| Tailpipe CO₂ (g/mi) | 491 | 504 |
| Engine | 2.7 L 4-cyl turbo | 3.8 L 6-cyl |
| Transmission | Automatic 8-spd | Automatic (S9) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.