The GMC Hummer EV SUV, launched in January 2023, represents a significant entry into the burgeoning all-electric SUV market. Built upon the Ultium platform, it’s a direct descendant of the iconic Hummer brand, reimagined for a new era of sustainability and performance. This particular variant, equipped with a 170 kWh battery pack and delivering 830 horsepower through its e4WD system, positions itself as a flagship model, offering both extreme capability and a substantial driving range. The Hummer EV SUV is offered with a unique Targa top configuration, adding to its distinctive aesthetic and off-road appeal. It seats five passengers and boasts a spacious interior designed for both comfort and utility.
Technical Specifications
| Brand | GMC |
| Model | Hummer EV |
| Generation | Hummer EV SUV |
| Type (Engine) | 170 kWh (830 Hp) e4WD |
| Start of production | January, 2023 |
| Powertrain Architecture | BEV (Electric Vehicle) |
| Body type | SUV, Targa |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Electricity |
| Acceleration 0 – 60 mph | 3.5 sec |
| Maximum speed | 105.63 mph (170 km/h) |
| Gross battery capacity | 170 kWh |
| Battery voltage | 800 V |
| Battery technology | Lithium nickel cobalt manganese aluminum (Li-NCMA) |
| Battery location | Below the floor |
| All-electric range (EPA) | 298.26 – 313.79 mi (480-505 km) |
| Trunk (boot) space – minimum | 35.92 cu. ft. (1017 l) |
| Trunk (boot) space – maximum | 81.79 cu. ft. (2316 l) |
| Permitted trailer load with brakes (12%) | 7500.13 lbs (3402 kg) |
| Length | 206.69 in (5250 mm) |
| Width | 86.46 in (2196 mm) |
| Width with mirrors folded | 87.52 in (2223 mm) |
| Width including mirrors | 93.7 in (2380 mm) |
| Height | 77.8 in (1976 mm) |
| Wheelbase | 126.69 in (3218 mm) |
| Front track | 73.35 in (1863 mm) |
| Rear (Back) track | 73.35 in (1863 mm) |
| Front overhang | 34.69 in (881 mm) |
| Rear overhang | 45.31 in (1151 mm) |
| Ride height (ground clearance) | 10.2 – 15.98 in (259-406 mm) |
| Minimum turning circle (turning diameter) | 35.43 ft (10.8 m) |
| Approach angle | 41.4-49.6° |
| Departure angle | 40-49° |
| Ramp-over (brakeover) angle | 23.8-34.4° |
| Climb angle | 31° |
| Wading depth | 25.98 – 32.01 in (660-813 mm) |
| Drivetrain Architecture | Two electric motors drive the rear wheels, one electric motor drives the front wheels. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 1 gears, automatic transmission |
| Front suspension | Double wishbone, Air suspension |
| Rear suspension | Double wishbone, Air suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system), 4-wheel steering (4WS, active rear steering) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 305/70 R18; 305/55 R22 |
| Wheel rims size | 9J x 18; 9.5J x 22 |
Powertrain & Engine Architecture
The GMC Hummer EV SUV utilizes a tri-motor electric powertrain, employing three independent electric motors. Two motors are mounted to the rear axle, enabling torque vectoring for enhanced handling, while the third motor drives the front axle. All three motors are synchronous type. This configuration delivers standard e4WD capability. The heart of the system is the 170 kWh battery pack, utilizing Li-NCMA (Lithium Nickel Cobalt Manganese Aluminum) chemistry. This large capacity provides a substantial driving range, estimated between 298 and 314 miles on a full charge by the EPA. The 800-volt architecture allows for rapid DC fast charging, capable of adding significant range in a short period. The single-speed automatic transmission is inherent to electric vehicle design, providing seamless and instant torque delivery.
Driving Characteristics
The 830 horsepower output and instant torque of the electric motors result in exhilarating acceleration. The Hummer EV SUV can sprint from 0 to 60 mph in just 3.5 seconds. The e4WD system, combined with the torque vectoring capabilities of the rear motors, provides exceptional traction in various conditions, both on and off-road. The air suspension system allows for adjustable ride height, increasing ground clearance for off-road obstacles and lowering the vehicle for improved aerodynamics and handling on paved roads. The steering is precise and responsive, aided by the electric power steering system. While the substantial weight of the vehicle is noticeable, the low center of gravity contributes to stable handling.
Equipment & Trim Levels
The Hummer EV SUV comes standard with a high level of equipment. Interior features include a large 12.3-inch touchscreen infotainment system, a digital instrument cluster, and premium materials throughout the cabin. Standard safety features include automatic emergency braking, lane keep assist, and adaptive cruise control. The Targa top, with removable roof panels, is a defining feature of the SUV. Optional extras include the Extreme Off-Road Package, which adds features like underbody armor, rock rails, and more aggressive tires. Interior options include various upholstery choices and premium audio systems.
Chassis & Braking
The Hummer EV SUV features a robust chassis designed to withstand the demands of off-road driving. The suspension utilizes a double-wishbone design at both the front and rear, coupled with an air suspension system for adjustable ride height and damping. Ventilated disc brakes are used on all four wheels, providing ample stopping power. The vehicle is equipped with an anti-lock braking system (ABS) and features 4-wheel steering (4WS) with active rear steering, enhancing maneuverability at low speeds and stability at high speeds.
Market Reception & Comparison
The GMC Hummer EV SUV has garnered significant attention for its bold design, impressive performance, and innovative technology. Critics have praised its off-road capability, spacious interior, and rapid charging capabilities. However, its high price point and substantial weight have been noted as potential drawbacks. Compared to other electric SUVs, such as the Tesla Model X or the Rivian R1S, the Hummer EV SUV stands out with its focus on extreme capability and its distinctive styling. Its range is competitive, and its charging speed is among the fastest in the segment.
Legacy
The GMC Hummer EV SUV represents a pivotal moment for the Hummer brand, transitioning it from a gas-guzzling icon to a symbol of electric innovation. The Ultium platform and the advanced electric powertrain technology are expected to influence future GMC vehicles. The long-term reliability of the powertrain remains to be seen, but the robust construction and advanced battery management system suggest a durable and long-lasting system. On the used car market, early Hummer EV SUVs are expected to command a premium due to their limited availability and unique features. The vehicle’s combination of performance, technology, and distinctive styling ensures its place as a significant vehicle in the evolution of the electric SUV segment.
