The 2025 GMC Sierra EV vs. 2025 GMC Sierra HD Options: Choosing the Right Sierra for You

With more choices than ever, drivers are considering the switch to electric vehicles. While many truck fans would love to escape the pain at the pump, some may hesitate to go electric out of concerns about power, payload, and towing capacity. In this guide, we’ll compare a combustion model and an all-electric variant available at your local GMC dealership: The 2025 GMC Sierra EV and the 2025 GMC Sierra Heavy-Duty.

Engine, Drivetrain, and Performance

Under the hood, the all-electric GMC Sierra EV can easily hold its own against the combustion-engine GMC Sierra Heavy-Duty model. The Sierra EV’s formidable four-wheel drive electric drivetrain has an astonishing 754 horsepower, delivering 785 pound-feet of torque.

The standard Sierra HD is no slouch, either. Its 6.6-liter V-8 engine generates 401 horsepower and 785 pound-feet of torque, but an upgrade to the Duramax diesel pumps the torque up to 975. The Sierra EV also comes out ahead in acceleration. It has been clocked at an astonishingly fast 4.1 seconds in zero-to-60 trials. The Sierra HD base model can hit that in 7.5 seconds, but with a Duramax diesel equipped, that drops to 6.6 seconds.

Towing Capacity

The all-electric model can tow up to 10,000 pounds, whereas the standard GMC Sierra HD 2500 two-wheel drive has a maximum payload capacity of 3,907 pounds. However, with an upgrade to a GMC Sierra 3500 heavy duty and a four-wheel drive Duramax diesel engine, the payload increases to a whopping 36,000, depending on options like cab size, drivetrain, axle, and hitch.  

It’s also noteworthy that the GMC Sierra EV includes the ProGrade Trailering system standard, which includes some nice features like an integrated brake control, blind spot assistance, and trailer cameras.

Cabin Options and Other Amenities

The two existing trims for the Sierra EV have a crew cab that seats five. The Sierra HD has a wider selection of cab options, ranging from a regular cab that seats three to an expanded cab that seats six. Both models feature similar infotainment options, including Apple CarPlay and Android Auto connectivity, but the Sierra EV has a much larger infotainment touchscreen that is 16.8 inches instead of the 8.0-inch one available on most Sierra HD trims.

Now that you know more about the Sierra EV and the Sierra HD, it’s time to try them yourself. Stop by Oxendale GMC for a test drive today!

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