Performance, power and 0-100 km/h
2024 GMC Hummer EV SUV EV3X has the quicker recorded 0-100 km/h time at 3.5 seconds, compared with 3.6 seconds for 2026 Rivian R1S Dual Standard. 2024 GMC Hummer EV SUV EV3X has the higher listed output at 830 hp; 2026 Rivian R1S Dual Standard is rated at 600 hp, a difference of 230 hp. The torque figures follow 2024 GMC Hummer EV SUV EV3X at 1,516 Nm and 2026 Rivian R1S Dual Standard at 878 Nm. These figures describe straight-line potential only; they do not establish braking performance, ride quality, steering response or durability under repeated hard use.
Range, battery, charging and efficiency
2024 GMC Hummer EV SUV EV3X carries the longer listed range at 505 km, against 488 km for 2026 Rivian R1S Dual Standard. 2026 Rivian R1S Dual Standard has the lower recorded consumption at 20.5 kWh/100km; 2024 GMC Hummer EV SUV EV3X is listed at 42.1 kWh/100km. 2024 GMC Hummer EV SUV EV3X has the higher listed DC charging ceiling at 350 kW, compared with 220 kW. Test cycle, temperature, wheel size and charging conditions can materially affect these results, so only figures measured on the same basis should be treated as directly comparable.
Dimensions, cargo space and towing
2024 GMC Hummer EV SUV EV3X provides the larger quoted cargo volume: 1,016 litres versus 498 litres, a difference of 518 litres. 2024 GMC Hummer EV SUV EV3X carries the higher towing rating at 3,402 kg, while 2026 Rivian R1S Dual Standard is listed at 3,175 kg. 2026 Rivian R1S Dual Standard is 41 mm longer overall. Exterior size is not a benefit by itself: a longer body may create useful room, but cargo shape, rear-seat space and ease of parking still require a physical inspection.
Price and overall assessment
2026 Rivian R1S Dual Standard has the lower listed starting price at $75,900, compared with $98,845 for 2024 GMC Hummer EV SUV EV3X. 2024 GMC Hummer EV SUV EV3X leads in more of the shared headline fields, but that is not a universal verdict: a buyer should weight price, performance, range and utility rather than simply count category wins. The assessment is based on the specifications shown here; it is not presented as a two-car road test.