2006 Gmc Sierra 3500 Sle1 4dr Crew Cab 4wd Lb Drw on 2040-cars

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GM confirms 2015 Silverado, Sierra to get 8-speed automatic

When viewed alongside the next Ford F-150 and the Ram 1500, there is one thing that seems to be missing from the Chevrolet Silverado and GMC Sierra. Where the F-150 will rely on turbocharging and aluminum architecture and the Ram sports an eight-speed automatic and an air suspension, the General Motors twins lack a big, calling-card feature. They're very good, very refined trucks, but one could argue that they're not terribly innovative.
And while it might not be as flashy a feature as air suspension or a lightweight skin, the Silverado and Sierra will get their own eight-speed automatic for 2015, a transmission that will be paired with the company's Ecotec3 6.2-liter V8. The new cogswapper will also find its way into the GMC Yukon Denali, but for now, there's no indication why the Cadillac Escalade, Suburban, Tahoe and standard Yukon are being left out.
According to GM, the new gearbox is about the same size and weight as the current Hydra-Matic 6L80 six-speed. By the time the new powertrain combination enters production late this year, the EPA will almost certainly have gotten around to certifying the vehicles' fuel efficiency. Until then, feel free to speculate. The current Silverado with the 6.2 and six-speed auto returns 14 miles per gallon in the city and 20 on the highway. How much do you think the eight-speed will improve those figures? Scroll down for the official press blast from General Motors, and then head into Comments.

2022 GMC Hummer EV shows off accessories ahead of SEMA

As is the case with nearly every new off-roader on the market, the 2022 GMC Hummer EV will have a bunch of accessories available for personalizing the big electric pickup truck. In fact, GMC says that the total number of add-ons is close to 200. But for the SEMA show, it's sharing just a few of what it says are the more interesting accessories. Quite a few of these parts will take you a long way to turning the Hummer EV into an overlander. The most obvious is the roof-top tent that utilizes mounts on the roof and the bed. It looks quite large and roomy. Naturally, auxiliary lighting is available, too, including a 50-inch roof light bar and two smaller spot lights that mount ahead of the A pillars. For storage, there's a nifty swing-out toolbox, shown in the gallery as more of a tackle box, plus a battery-powered cooler and a bed-mount for a full-size spare tire. There's also a more traditional bed extender and simple bed rail-mounted rack. And just for fun, you can get a Kicker audio sound system built into the MultiPro tailgate to listen to your music. Not all the accessories are about utility, though. There are some visual enhancements such as the red decals shown in the gallery. They match other decals and badges available, and they're offered in bronze, too. There are some branded puddle lights on offer as well. These should be available around when the Hummer EV pickup goes on sale next year. Pricing for each part will surely vary, though exact numbers haven't been announced. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

GM claims it's first to sell million 30+ mpg vehicles

As we continue to put together all the data for the year-end edition of By The Numbers, General Motors has announced that it sold more than a million vehicles in the US last year that achieved at least 30 miles per gallon on the highway. More impressively, GM managed this feat using multiple strategies including small vehicle size, turbocharged engines and hybrid or plug-in technologies across four brands (Buick, Cadillac, Chevrolet and GMC) accounting for 13 separate models. This number will grow even more in 2013 thanks to cars like the all-electric Spark, the diesel Cruze, the range-extended Cadillac ELR and the Buick Encore compact CUV.
GM's small car sales were up 39 percent last year helping to attain this million-sales mark for 30-mpg models, and almost 40 percent of all GM sales consisted of cars with fuel-efficient I4 engines. In regards to more advanced means of improving fuel economy, GM says that it plans on having 500,000 vehicles with "some form of electrification" on the road by 2017.
Scroll down for the full list of GM's million 30+ mpg cars as well as an informative press release.