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What the electric Hummer's size and weight means for its efficiency

The 2022 GMC Hummer EV Edition 1. Tim Levin/Insider If you think driving a pint-sized Nissan Leaf is as good for the planet as driving a huge electric Hummer, think again.  The GMC Hummer EV uses significantly more electricity than other EVs, meaning it produces more pollution upstream.  The electric Hummer weighs 9,000 pounds and its battery weighs as much as a Honda Civic. The new electric Hummer rolls through town without a deafening engine rumble or a cloud of toxic fumes, but it doesn't exactly tread lightly.  The colossal truck weighs an astonishing 9,000 pounds. (Think two Toyota Tacomas, three Honda Civics, or 24 Shaquille O'Neals.) Moreover, the GMC Hummer EV is in many ways a supersized gas guzzler for a new era. It repackages many of the same flaws of hulking SUVs and trucks of years past — and proves not all zero-emission cars are created equal. EVs can be energy guzzlers too On the whole, electric cars use less energy than gas-powered ones. But they aren't all equally efficient.  No surprise here: The Hummer needs more electricity than any other EV on the market to move its elephantine frame. The Environmental Protection Agency rates the pickup at 47 MPGe (miles per gallon of gasoline-equivalent). For comparison, the Tesla Model 3 sedan is nearly three times as efficient, earning a rating of 132 MPGe. The Ford F-150 Lightning, another electric truck, gets 70 MPGe.  This has real consequences: Since the US gets 61% of its energy from oil, coal, and natural gas, the more electricity a car needs, the more pollution it creates upstream.  As the Union of Concerned Scientists put it: "Both EV cars and trucks are much cleaner than their gasoline counterparts, but electric trucks are responsible for more global warming emissions than electric cars simply because trucks are larger and heavier."  The 2022 GMC Hummer EV Edition 1. Tim Levin/Insider The Hummer EV is also resource-intensive to manufacture, requiring a ginormous (and weighty) battery to give people the 300-plus miles of range they desire. You could produce three Chevrolet Bolts with the same battery cells consumed by one Hummer.

Chevy Express, GMC Savanna reportedly ending production for 2025

The oldest commercial vans on the market may only have a few years left, according to a report from Autoweek. The news outlet cited a "competitive analysis source" in saying that the Chevy Express and GMC Savanna commercial vans would be discontinued after the 2025 model year. They would then be replaced by a new electric van, likely Ultium-platform based, for the 2026 model year. We reached out to GM for comment, and this is the official statement sent to us: "We have said in the past that as part of GM’s larger EV acceleration plans that we will add two new vehicles to our commercial portfolio. The first is a full-sized battery electric cargo van and the second is a medium-duty truck that will put both Ultium and our Hydrotec hydrogen fuel cell technology to work. We have not disclosed timing, names or shared any other details, so any articles reporting more are purely speculative." The GM vans are mighty old, having been introduced for the 1996 model year. They've barely changed since then, having received just some facelifts and updated powertrains over the years. And with GM's electrification plans, we're not surprised that these vans will be on the way out. We do have some disagreement about the reported timeline for replacement, though. We suspect that the upcoming electric vans will overlap with the old vans for at least a year. The reason being that there are a lot of these vans on the road, and there are a lot of pieces of equipment that fit them. Box vans, buses and more have components that have been designed for the Express and Savanna. If you're a fleet that has invested in these components, you might not be ready to shift over to a whole new platform. So GM will probably want to give fleet buyers one last opportunity to replace any old vans before committing entirely to a new electric van platform. It will also be interesting to see what kind of market the GM electric vans enter. Ford already has its electric Transit on the way, and Stellantis will be launching the Ram ProMaster electric van next year. Those are both based on existing gas-powered vans. And GM itself has already delivered the first of its larger BrightDrop EV600 electric vans to FedEx. The coming GM vans will likely be new platforms, which could give them performance and range advantages, though the Ford and Stellantis vans will have the advantage of being compatible with equipment for the gas variants.

Supercharged 2015 GMC Yukon Denali sounds evil, runs 0-60 in 4.5 seconds

Speeding along in a sports car is undoubtedly a ton of fun, but some owners need the ability to carry a lot of people and their stuff and don't want to sacrifice the ability to put the power down. The tuners over at Hennessey have that demographic covered with their growling, supercharged power kits for the GMC Yukon Denali. The upgrades come in three forms for the SUV's 6.2-liter V8: HPE550 with 557 horsepower, HPE600 with 605 hp and HPE650 with 665 hp. This video showcases the full-bore version, and this Denali can definitely hustle in a straight line. The power bump comes courtesy of a 2.9-liter supercharger, intercooler and high-flow cylinder heads to add over 200 horsepower compared to stock, and the final result is a bellowing SUV that rears up off he line to throw the driver back into the seat. The sprint to 60 miles per hour lasts just 4.5 seconds. Check out this hasty hauler in action in the video above.