Global EV Comparison: Rivian R1S Performance Dual-Motor Max vs GMC Hummer EV SUV 2X

Side-by-side comparison of all specifications in metric units (km, kg). To see imperial units (mi, lb), switch website version to USA.
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General Info

While both vehicles are currently in production, they are not sold in Europe.

The two vehicles share the same body style: SUV.

Property Rivian R1S Performance Dual-Motor Max GMC Hummer EV SUV 2X
Years of Production 2025-… 2024-…
Current Status Produced Produced
Country of Manufacture USA USA
Body Style SUV SUV
Market Availability USA USA
GCC Score 8.2 7.8

Range and Efficiency

Even though the GMC Hummer EV SUV 2X (2024-…) has a larger battery, the Rivian R1S Performance Dual-Motor Max (2025-...) higher energy efficiency results in a longer real-world driving range.

Property Rivian R1S Performance Dual-Motor Max GMC Hummer EV SUV 2X
Range (EPA) 660 km 488 km
Range (GCC) 627 km 464 km
Battery Capacity (Nominal) 147 kWh 184 kWh
Battery Capacity (Usable) 140 kWh 173 kWh
Efficiency per 100 km 22.3 kWh/100 km 37.3 kWh/100 km
Efficiency per kWh 4.48 km/kWh 2.68 km/kWh
Range and Efficiency Score 7.6 4.3

Charging

The GMC Hummer EV SUV 2X (2024-…) features an advanced 800-volt architecture, whereas the Rivian R1S Performance Dual-Motor Max (2025-...) relies on a standard 400-volt system.

The GMC Hummer EV SUV 2X (2024-…) offers faster charging speeds at DC stations, reaching up to 300 kW, while the Rivian R1S Performance Dual-Motor Max (2025-...) maxes out at 220 kW.

The GMC Hummer EV SUV 2X (2024-…) features a more powerful on-board charger, supporting a maximum AC charging power of 19.2 kW, whereas the Rivian R1S Performance Dual-Motor Max (2025-...) is limited to 11.5 kW.

Property Rivian R1S Performance Dual-Motor Max GMC Hummer EV SUV 2X
Max Charging Power (AC) 11.5 kW 19.2 kW
Max Charging Power (DC) 220 kW 300 kW
Architecture 400 V 800 V
Charge Port CCS Type 1 CCS Type 1
Charging Score 7.9 9.8

Performance

Both vehicles are all-wheel drive.

The Rivian R1S Performance Dual-Motor Max (2025-...) boasts greater motor power and accelerates faster from 0 to 100 km/h.

Property Rivian R1S Performance Dual-Motor Max GMC Hummer EV SUV 2X
Drive Type AWD AWD
Motor Type PMSM (front), PMSM (rear) PMSM (front), PMSM (rear)
Motor Power (kW) 496 kW 466 kW
Motor Power (hp) 665 hp 625 hp
Motor Torque 1124 Nm 10033 Nm
0-100 km/h 3.6 s 3.9 s
Top Speed 209 km/h 180 km/h
Performance Score 7.3 7

Dimensions

The Rivian R1S Performance Dual-Motor Max (2025-...) stretches out longer, while the GMC Hummer EV SUV 2X (2024-…) compensates with a wider stance. As for height, they’re nearly identical, so headroom should be comparable.

The GMC Hummer EV SUV 2X (2024-…) boasts a more extended wheelbase.

Property Rivian R1S Performance Dual-Motor Max GMC Hummer EV SUV 2X
Length 5100 mm 4999 mm
Width (with Mirrors) 2238 mm 2380 mm
Width (w/o Mirrors) 2082 mm 2198 mm
Height 1955 mm 1975 mm
Wheelbase 3076 mm 3218 mm

Cargo and Towing

The GMC Hummer EV SUV 2X (2024-…) features a larger trunk, but the Rivian R1S Performance Dual-Motor Max (2025-...) offers greater maximum cargo capacity when the rear seats are folded.

Both models feature a convenient frunk (front trunk), providing additional storage space.

The GMC Hummer EV SUV 2X (2024-…) is better suited for heavy loads, offering a greater towing capacity than the Rivian R1S Performance Dual-Motor Max (2025-...).

Property Rivian R1S Performance Dual-Motor Max GMC Hummer EV SUV 2X
Number of Seats 5, 7 5
Curb Weight 3025 kg 3928 kg
Cargo Volume (Trunk) 481 l 1017 l
Cargo Volume (Max) 2548 l 2317 l
Cargo Volume (Frunk) 314 l 320 l
Towing Capacity 3492 kg 4536 kg
Cargo and Towing Score 9.7 9.7
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