2026 Mercedes-Benz GLS580 4matic vs 2027 GMC Yukon XL 2WD
| EPA figure | 2026 Mercedes-Benz GLS580 4matic | 2027 GMC Yukon XL 2WD |
|---|---|---|
| Model year | 2026 | 2027 |
| Body · drive | SUV · All-Wheel Drive · Hybrid | SUV · Rear-Wheel Drive · Gas |
| Combined MPG | 16 | 16 |
| City / highway MPG | 14 / 20 | 15 / 19 |
| Fuel a year | $5,150 | $5,150 |
| Tailpipe CO₂ (g/mi) | 539 | 544 |
| Engine | 4.0 L 8-cyl turbo | 6.2 L 8-cyl |
| Transmission | Automatic 9-spd | Automatic 10-spd |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.