GMC Hummer EV vs Jeep Gladiator
The GMC Hummer EV is the more efficient of the two: it reaches 53 mpg combined versus 24 mpg for the Jeep Gladiator, a 29 mpg advantage and costs about $1,850 less per year to fuel.
Across 4 measured categories, the GMC Hummer EV leads in 4. Figures are EPA test data, not manufacturer claims.
2024–2025
GMC Hummer EV
Standard Pickup Trucks 4WD · 16 configurations
2021–2027
Jeep Gladiator
Standard Pickup Trucks 4WD · 17 configurations
Head-to-head specifications
| Metric | GMC Hummer EV | Jeep Gladiator |
|---|---|---|
| Best combined MPG | 53 mpg ✓ | 24 mpg |
| Best city MPG | 59 mpg ✓ | 22 mpg |
| Best highway MPG | 48 mpg ✓ | 28 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $1,400 ✓ | $3,250 |
| Lowest CO2 output | Not available | 423 g/mi |
| Engines offered | Not available | 3.6, 3.0 |
| Transmissions | Automatic (A1) | Automatic 8-spd, Manual 6-spd |
| Drivetrains | All-Wheel Drive | 4-Wheel Drive |
| Fuel types | Electricity | Regular, Diesel |
| EPA class | Standard Pickup Trucks 4WD | Standard Pickup Trucks 4WD |
| Years covered | 2024–2025 | 2021–2027 |
| Configurations on record | 16 | 17 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
Hummer EV vs Gladiator: common questions
Which is better on gas, the GMC Hummer EV or the Jeep Gladiator?
The GMC Hummer EV is the more efficient of the two: it reaches 53 mpg combined versus 24 mpg for the Jeep Gladiator, a 29 mpg advantage and costs about $1,850 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the GMC Hummer EV runs about $1,400 a year in fuel at its most efficient configuration, versus about $3,250 for the Jeep Gladiator — a difference of roughly $1,850 per year.
What engines do the Hummer EV and Gladiator offer?
GMC Hummer EV: no engine data on record. Jeep Gladiator: 3.6, 3.0.
Are they in the same vehicle class?
Yes — the EPA classifies both the GMC Hummer EV and the Jeep Gladiator as Standard Pickup Trucks 4WD, so they compete directly.
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Comparison id: gmc-hummer-ev-vs-jeep-gladiator