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2025 GMC Hummer EV vs 2025 GMC Sierra

Published figures side by side. Rows where our sources have no value for a vehicle read “Not available”. Configurations differ within a model year, so ranges are shown where they apply.

Specification comparison
Specification2025 GMC Hummer EV2025 GMC Sierra
Engine
EngineNot availableVaries by configuration: 2.7L 4-cylinder turbocharged (SIDI), 2.7L 4-cylinder turbocharged (SIDI; with Sport Mode), 3.0L 6-cylinder turbocharged, 5.3L 8-cylinder (SIDI; with Sport Mode), 5.3L 8-cylinder (SIDI), 2.7L 4-cylinder turbocharged (SIDI; With Sport Mode), 3.0L 6-cylinder turbocharged (with Sport Mode), 5.3L 8-cylinder (SIDI; Municipal), 5.3L 8-cylinder (SIDI; FFV), 6.2L 8-cylinder (SIDI)
DisplacementNot available2.7 L to 6.2 L
CylindersNot available4 to 8
AspirationNot availableTurbocharged
Fuel typeElectricVaries by configuration: Gasoline, Diesel, Flex fuel, Electric
Transmission and drivetrain
TransmissionSingle-speedVaries by configuration: Automatic, Single-speed
Gears11 to 10
DrivetrainAWDVaries by configuration: RWD, 4WD
Fuel economy and range
CombinedNot available26 mpg (9.0 L/100 km) to 15 mpg (15.7 L/100 km)
CityNot available23 mpg (10.2 L/100 km) to 14 mpg (16.8 L/100 km)
HighwayNot available29 mpg (8.1 L/100 km) to 16 mpg (14.7 L/100 km)
Electric range282 mi (454 km) to 318 mi (512 km)390 mi (628 km)