GMC Hummer EV vs Rivian R1T
The Rivian R1T is the more efficient of the two: it reaches 87 mpg combined versus 53 mpg for the GMC Hummer EV, a 34 mpg advantage and costs about $550 less per year to fuel.
Across 4 measured categories, the Rivian R1T leads in 4. Figures are EPA test data, not manufacturer claims.
2024–2025
GMC Hummer EV
Standard Pickup Trucks 4WD · 16 configurations
2022–2027
Rivian R1T
Standard Pickup Trucks 4WD · 91 configurations
Head-to-head specifications
| Metric | GMC Hummer EV | Rivian R1T |
|---|---|---|
| Best combined MPG | 53 mpg | 87 mpg ✓ |
| Best city MPG | 59 mpg | 94 mpg ✓ |
| Best highway MPG | 48 mpg | 80 mpg ✓ |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $1,400 | $850 ✓ |
| Lowest CO2 output | Not available | Not available |
| Engines offered | Not available | Not available |
| Transmissions | Automatic (A1) | Automatic (A1) |
| Drivetrains | All-Wheel Drive | 4-Wheel Drive, Part-time 4-Wheel Drive, All-Wheel Drive |
| Fuel types | Electricity | Electricity |
| EPA class | Standard Pickup Trucks 4WD | Standard Pickup Trucks 4WD |
| Years covered | 2024–2025 | 2022–2027 |
| Configurations on record | 16 | 91 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Hummer EV vs R1T: common questions
Which is better on gas, the GMC Hummer EV or the Rivian R1T?
The Rivian R1T is the more efficient of the two: it reaches 87 mpg combined versus 53 mpg for the GMC Hummer EV, a 34 mpg advantage and costs about $550 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Rivian R1T runs about $850 a year in fuel at its most efficient configuration, versus about $1,400 for the GMC Hummer EV — a difference of roughly $550 per year.
What engines do the Hummer EV and R1T offer?
GMC Hummer EV: no engine data on record. Rivian R1T: no engine data on record.
Are they in the same vehicle class?
Yes — the EPA classifies both the GMC Hummer EV and the Rivian R1T as Standard Pickup Trucks 4WD, so they compete directly.
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Comparison id: gmc-hummer-ev-vs-rivian-r1t