Compare the2026 GMC Hummer EV SUVVS 2027 Rivian R2

In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Hummer EV SUV are reminded to check the back seat if they opened the rear door before starting out. The R2 doesn’t offer a back seat reminder.

To provide maximum traction and stability on all roads, Full-Time Four-Wheel Drive is standard on the Hummer EV SUV. But it costs extra on the R2.

The GMC Hummer EV SUV’s Surround Vision has integrated front and rear camera washers, ensuring clear, all-weather visibility without the need for manual cleaning. In contrast, the Rivian R2 lacks camera washers, requiring you to manually clean the cameras for optimal performance.

Both the Hummer EV SUV and R2 have rear cross-traffic warning, but the Hummer EV SUV has Rear Cross Traffic Braking (automatically applies the brakes) to better prevent a collision when backing near traffic. The R2’s Rear Cross-Traffic Warning doesn’t automatically brake.

Both the Hummer EV SUV and the R2 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, around view monitors, rear cross-path warning and driver alert monitors.

The GMC Hummer EV SUV weighs 3713 to 4050 pounds more than the Rivian R2. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

There are almost 17 times as many GMC dealers as there are Rivian dealers, which makes it much easier should you ever need service under the Hummer EV SUV’s warranty.

J.D. Power and Associates’ 2025 Initial Quality Study of new car owners surveyed provide the statistics that show that GMC vehicles are better in initial quality than Rivian vehicles. With 75 fewer problems per 100 vehicles, JD Power ranks GMC higher than Rivian.

From surveys of all its subscribers, Consumer Reports’ March 2026 Auto Issue reports that GMC vehicles are more reliable than Rivian vehicles. Consumer Reports ranks GMC 3 places higher in reliability than Rivian.

The Hummer EV SUV has more powerful engines than the R2:

The Hummer EV SUV can travel longer on a full charge than the R2 on a full charge:

For better stopping power the Hummer EV SUV’s brake rotors are larger than those on the R2:

For better traction, the Hummer EV SUV has larger tires than the R2 (305/55R22 vs. 265/60R20).

The Hummer EV SUV’s tires provide better handling because they have a lower 55 series profile (height to width ratio) that provides a stiffer sidewall than the R2’s 60 series tires.

For better ride, handling and brake cooling the Hummer EV SUV has standard 22-inch wheels. The R2’s largest wheels are only 21-inches.

The GMC Hummer EV SUV’s wheels have 8 lugs for longer wheel bearing life, less chance of rotor warping and greater strength. The Rivian R2 only has 5 wheel lugs per wheel.

The front and rear suspension of the Hummer EV SUV uses air springs for a smoother, controlled ride than the R2, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The Hummer EV SUV has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The Hummer EV SUV’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The R2 doesn’t offer a load leveling suspension.

For a smoother ride and more stable handling, the Hummer EV SUV’s wheelbase is 11.1 inches longer than on the R2 (126.7 inches vs. 115.6 inches).

For better handling and stability, the track (width between the wheels) on the Hummer EV SUV is 9.4 inches wider in the front and 9.4 inches wider in the rear than on the R2.

For better maneuverability, the Hummer EV SUV’s turning circle is 4.3 feet tighter than the R2’s (35.4 feet vs. 39.7 feet).

For greater off-road capability the Hummer EV SUV has a 6.4 inches greater minimum ground clearance than the R2 (16 vs. 9.6 inches), allowing the Hummer EV SUV to travel over rougher terrain without being stopped or damaged.

For excellent aerodynamics, the Hummer EV SUV has standard flush composite headlights. The R2 has recessed headlights that spoil its aerodynamic shape and create extra drag.

The front grille of the Hummer EV SUV uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The R2 doesn’t offer active grille shutters.

The Hummer EV SUV has 1.6 inches more front headroom, 4.2 inches more front legroom, 5.4 inches more front hip room, 6.1 inches more front shoulder room, 5.5 inches more rear hip room and 7.5 inches more rear shoulder room than the R2.

For enhanced passenger comfort on long trips the Hummer EV SUV’s rear seats recline. The R2’s rear seats don’t recline.

The Hummer EV SUV has a much larger cargo volume with its rear seat up than the R2 with its rear seat up (35.9 vs. 28.7 cubic feet). The Hummer EV SUV has a much larger cargo volume with its rear seat folded than the R2 with its rear seat folded (81.8 vs. 79.4 cubic feet).

The Hummer EV SUV’s standard rear cargo window opens separately from the rest of the right swing out door to allow quicker loading of small packages. A separately opening cargo window is only available on the R2 Premium/Performance.

The Hummer EV SUV’s standard towing capacity is much higher than the R2’s (10,000 vs. 3500 pounds).

Standard Trailer Sway Control on the Hummer EV SUV uses the StabiliTrak® sensors to detect trailer sway, then uses individual brakes to counteract any swaying and help keep the tow vehicle and trailer steady. The R2 doesn’t offer electronic trailer sway control.

The Hummer EV SUV has a much higher standard payload capacity than the R2 (1460 vs. 1102 lbs.).

The Hummer EV SUV has a much higher maximum payload capacity than the R2 (1460 vs. 1168 lbs.).

The Hummer EV SUV’s standard rear and side view mirrors have an automatic dimming feature. These mirrors can be set to automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The R2 has an automatic rear view mirror, but its side mirrors don’t dim.

The Hummer EV SUV’s Enhanced Automatic Parking Assist can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The R2 doesn’t offer an automated parking system.