2026 GMC Sierra 4WD (Flex Fuel) vs Rivian R1T Performance Dual Max (22in)2026 Fuel Economy & MPG Comparison
GMC Sierra 4WD (Flex Fuel) vs Rivian R1T Performance Dual Max (22in) mpg, GMC Sierra 4WD (Flex Fuel) vs Rivian R1T Performance Dual Max (22in) fuel economy, GMC Sierra 4WD (Flex Fuel) vs Rivian R1T Performance Dual Max (22in) gas mileage
GMC Sierra 4WD (Flex Fuel): GasolineRivian R1T Performance Dual Max (22in): EV
| 2026 GMCSierra 4WD (Flex Fuel) | 2026 RivianR1T Performance Dual Max (22in) | |
|---|---|---|
| Combined MPG | 17 MPG | 87 MPGe |
| City MPG | 15 | 93 |
| Hwy MPG | 19 | 80 |
| Annual Fuel Cost | $3,950 | $850 |
| NHTSA Safety | N/A | N/A |
| Recalls | 0 | 0 |
| Segment | Standard Pickup Trucks 4WD | Standard Pickup Trucks 4WD |
The 2026 Rivian R1T Performance Dual Max (22in) gets better fuel economy — 87 vs 17 combined MPGe.
Lower estimated annual fuel cost: $850 vs $3,950.