The GMC Hummer EV SUV, launched in November 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 625 horsepower through its e4WD system, positions itself as a premium offering within the Hummer EV lineup, emphasizing both capability and range. The Hummer EV SUV shares its core architecture with the Hummer EV pickup truck, but distinguishes itself with a shorter wheelbase, enclosed passenger cabin, and a focus on passenger comfort alongside off-road prowess.
Technical Specifications
| Brand | GMC |
| Model | Hummer EV |
| Generation | Hummer EV SUV |
| Type (Engine) | 170 kWh (625 Hp) e4WD |
| Start of production | November, 2023 |
| Powertrain Architecture | BEV (Electric Vehicle) |
| Body type | SUV, Targa |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Electricity |
| Maximum speed | 170 km/h (105.63 mph) |
| 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) | 449 km (279 mi) |
| Electric motor 1 location | Rear axle, Transverse |
| Electric motor 1 type | Synchronous |
| Electric motor 2 location | Front axle, Transverse |
| Electric motor 2 type | Synchronous |
| System power | 625 Hp |
| Trunk (boot) space – minimum | 1017 l (35.92 cu. ft.) |
| Trunk (boot) space – maximum | 2316 l (81.79 cu. ft.) |
| Permitted trailer load with brakes (12%) | 4536 kg (10000.17 lbs.) |
| Length | 5250 mm (206.69 in.) |
| Width | 2196 mm (86.46 in.) |
| Width with mirrors folded | 2223 mm (87.52 in.) |
| Width including mirrors | 2380 mm (93.7 in.) |
| Height | 1976 mm (77.8 in.) |
| Wheelbase | 3218 mm (126.69 in.) |
| Front track | 1863 mm (73.35 in.) |
| Rear (Back) track | 1863 mm (73.35 in.) |
| Front overhang | 881 mm (34.69 in.) |
| Rear overhang | 1151 mm (45.31 in.) |
| Ride height (ground clearance) | 259-406 mm (10.2 – 15.98 in.) |
| Minimum turning circle (turning diameter) | 10.8 m (35.43 ft.) |
| Approach angle | 41.4-49.6° |
| Departure angle | 40-49° |
| Ramp-over (brakeover) angle | 23.8-34.4° |
| Climb angle | 31° |
| Wading depth | 660-813 mm (25.98 – 32.01 in.) |
| Drivetrain Architecture | One electric motor drives the front wheels, one electric motor drives the rear 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 |
| Wheel rims size | 9J x 18 |
Powertrain & Engine Architecture
The GMC Hummer EV SUV utilizes a dual-motor, all-electric powertrain based around General Motors’ Ultium battery technology. The 170 kWh battery pack, composed of Li-NCMA pouch cells, provides substantial energy density and contributes to the SUV’s impressive 449 km (279 miles) EPA-estimated range. Each motor – one driving the front axle and one the rear – is a synchronous electric motor, delivering instant torque and precise control. The system’s combined output is rated at 625 horsepower and a staggering amount of torque, enabling rapid acceleration. The Ultium platform’s 800-volt architecture allows for DC fast charging at speeds up to 350 kW, potentially adding significant range in a short amount of time. The single-speed automatic transmission is inherent to electric vehicle design, providing seamless power delivery without the need for traditional gear changes.
Driving Characteristics
The Hummer EV SUV’s driving experience is markedly different from traditional internal combustion engine vehicles. The instant torque delivery from the electric motors provides exhilarating acceleration, with estimates placing 0-60 mph times in the 3.5-second range. The low center of gravity, thanks to the battery pack mounted beneath the floor, contributes to confident handling and stability. The air suspension system offers adjustable ride height, allowing for both comfortable on-road cruising and increased ground clearance for off-road adventures. The e4WD system provides excellent traction in various conditions, and features like CrabWalk (allowing the vehicle to drive diagonally) and Extract Mode (raising the suspension for obstacle clearance) further enhance its off-road capabilities. Compared to a hypothetical gasoline-powered Hummer, the EV SUV offers a smoother, quieter, and more refined driving experience.
Equipment & Trim Levels
The Hummer EV SUV, even in its base configuration with the 170 kWh battery, comes well-equipped. Standard features include a large 12.3-inch touchscreen infotainment system, a digital instrument cluster, and advanced driver-assistance systems such as Super Cruise (hands-free driving on compatible highways). Interior upholstery typically consists of premium materials like leatherette or leather, with available upgrades to more luxurious options. Optional extras include a panoramic glass roof, premium audio systems, and various off-road packages. The Targa top configuration, offering removable roof panels, adds a unique open-air experience.
Chassis & Braking
The Hummer EV SUV features a robust chassis designed to handle both on-road and off-road demands. The independent double wishbone suspension, coupled with the air suspension system, provides a comfortable ride and excellent articulation for navigating challenging terrain. Ventilated disc brakes on all four wheels provide ample stopping power, and are complemented by an anti-lock braking system (ABS). The vehicle’s substantial weight necessitates a powerful braking system, and regenerative braking further enhances efficiency by capturing energy during deceleration.
Market Reception & Comparison
The GMC Hummer EV SUV has garnered significant attention in the automotive press, praised for its bold design, impressive performance, and advanced technology. Critics have noted its high price point as a potential barrier to entry, but acknowledge its unique capabilities and appeal to a niche market. 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 off-road capability and its distinctive styling. Fuel economy, measured in MPGe (miles per gallon equivalent), is competitive within the electric SUV segment, and long-term reliability remains to be fully assessed.
Legacy
The GMC Hummer EV SUV represents a pivotal moment for the Hummer brand, transitioning it from a symbol of gas-guzzling excess to a leader in electric vehicle technology. The Ultium platform, upon which it is built, will underpin a wide range of future GM electric vehicles. The long-term reliability of the 170 kWh battery pack and the electric motors will be crucial in establishing the Hummer EV SUV’s reputation in the used car market. As battery technology continues to evolve, the Hummer EV SUV is poised to become a collectible vehicle, representing a significant step in the electrification of the automotive industry.
