2014 Gmc Sierra 1500 Base on 2040-cars

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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.

2014 Chevrolet Silverado and GMC Sierra debut all-new designs, three new engines

General Motors has finally dropped the curtain on the 2014 Chevrolet Silverado and 2014 GMC Sierra. Both trucks have undergone substantial revisions with updated versions of the company's 4.3-liter V6, 5.3-liter V8 and 6.2-liter V8 engines. In a shot across the bows of both Ford and Chrysler, GM says it won't use a V6 engine adapted from passenger car applications. Instead, it developed the 4.3-liter engine based on its proven truck-duty architecture.
All three mills will boast direct injection fuel systems as well as a new cylinder head design. Combined with a revised piston, the new engines feature a smaller combustion chamber with a compression ratio of 11:1 or higher depending on the application. Cylinder deactivation and continuously variable valve timing are all part of the recipe, and each engine is paired with a six-speed automatic transmission with auto grade breaking. So far, no fuel economy or horsepower figures have been released, though GM says the new engines will best their predecessors in both areas.
Outside, the trucks feature a number of enhancements to reduce drag and wind noise, and GM claims both the Silverado and Sierra will offer buyers some of the quietest cabins in the class. Extended cab models now feature front-hinged rear doors to allow easier access to the back passenger area, and Crew Cab buyers can now select between a five-foot, eight-inch bed or a six-foot, six-inch bed. Buyers with a mind toward going off road will also rejoice in the return of the Z71 package, complete with Rancho shocks, front tow hooks and additional under-body protection.

Volvo and GM team with Amazon for in-car deliveries

Volvo and GM are the first automakers to pair their vehicles with a new service from Amazon that lets owners have their packages delivered inside their cars, without them having to be there. The service will initially be rolled out in 37 U.S. cities at no extra charge to Amazon Prime members with a Volvo On Call or OnStar account, and it works with same-day, two-day and standard shipping. It's intended as an alternative for people who don't want to risk having their package stolen from their front porch or receive deliveries at their workplace, and both automakers say it's an example of how they're embracing innovation as a way to make their customers' lives easier. Volvo released a video (above) showing how the service works. Users download the Amazon Key App (or " Ama-zin," as the narrator pronounces it) and link their Amazon Prime account with their Volvo On Call account — or OnStar, in the case of GM-branded vehicles. Once they register their delivery location in a publicly accessible location, users can select the "In-Car" option at checkout. They get a notification when the delivery is en route and once it's completed and the car is relocked. Volvo has been offering in-car delivery in certain European countries since 2015 through its Volvo On Call platform, which enables services like the ability to send calendar-based navigation destinations directly to the vehicle, find nearby gas stations and help locate the vehicle when you forget where you parked it. Volvo says the platform is now available in roughly 50 countries and covers more than 90 percent of its global sales. The service is compatible with 2015 or newer Volvo, Buick, Cadillac, Chevrolet and GMC vehicles. Volvo says it's available to the majority of Volvo owners, while GM says more than 7 million vehicle owners can qualify. The service is expected to roll out to more cities later. You can check eligibility at amazon.com/keyincar. Related Video: Buick Cadillac Chevrolet GM GMC Volvo Technology Infotainment Amazon connected car volvo on call e-commerce