2026 Chevrolet Silverado (With Sport Mode) 4WD M6 vs GMC Sierra 2WD with Sport Mode — Side by Side Comparison
How does the 2026 Chevrolet Silverado (With Sport Mode) 4WD M6 compare to the GMC Sierra 2WD with Sport Mode? We put them side by side using EPA fuel economy data and NHTSA safety ratings.
Specifications Comparison
| Feature | Chevrolet Silverado (With Sport Mode) 4WD M6 | GMC Sierra 2WD with Sport Mode |
|---|---|---|
| Combined MPG | 18 | 18 |
| City MPG | 17 | 16 |
| Highway MPG | 20 | 21 |
| Body Style | Truck | Truck |
| Drive | 4WD | RWD |
| Fuel Type | Regular | Regular |
| Safety Rating | N/A / 5 | N/A / 5 |
| Recalls | 0 | 0 |
| Trims Available | 1 | 1 |
Fuel Economy
The GMC Sierra 2WD with Sport Mode is more fuel efficient by 0 MPG combined. Over a year, the GMC Sierra 2WD with Sport Mode saves approximately $0 in fuel costs.