2010 Gmc Sierra 1500 4wd Ext Cab 143.5" Sle 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.

Latest Forza Motorsport 5 car pack leaves us scratching our head (in a good way) [w/video]

As we scrolled down the roster of the latest car pack for Forza Motorsport 5, the Hot Wheels Car Pack, our expression became bemused over the strange mix of vehicles that we now have at our disposal. This is quite unlike any of the other sets of DLC Turn 10 Studios has offered. Sure, there are the typical headliner cars – the Lamborghini Veneno and 2015 Audi S3 – that will appeal to the mainstream racing fan or auto enthusiast. But this latest car pack is so jammed full of nuggets of automotive weirdness that it's hard not to get excited. The Hot Wheels pack has no shortage of racers, with a particular focus on historical offerings. A 1939 Auto Union Type D covers the pre-war era of Formula One, while a 1967 Lotus 49 and a 1952 Ferrari 375 represent post-war racing. For a modern twist, a Mazda USF2000 car slots in below the Indy Lights car from the Nurburgring booster pack. From here, things get vintage and weird. There are a pair of delightfully offbeat coupes, in the form of a 1974 Toyota Celica GT and a 1973 Ford XB Falcon GT (here's hoping we get a vintage Holden Monaro in the future). Those two are joined by a 1956 Ford F-100, which your author already plans on converting into a dragster with vinyl flames down the side (because that's what all vintage pickups should be). The new ride we're most excited about, though, is the 1983 GMC Vandura G-1500. Yes, that's the van from The A-Team, and we're sure it will prove to be an excellent canvas for the artists of FM5 to cover with airbrushed, fire-breathing unicorns and mystical, gray-haired wizards (or just poorly painted letters that read "Free Candy"). This latest car pack is the final monthly car pack for FM5, although Turn 10 is quick to point out that while the monthly updates are over, there will still be new batches of cars made available to gamers. As for the Hot Wheels pack, it's available now on Xbox Live for $9.99. Scroll down for the press release from Turn 10 Studios, as well as a video of the newest additions to Forza Motorsport 5's vehicle roster. Forza Motorsport 5 Hot Wheels Car Pack Now Available Turn 10 Studios is bringing the Hot Wheels® Car Pack to "Forza Motorsport 5," available for download today. The pack features a collection of vehicles built from the ground up for the new generation that car fans can collect and customize while putting their virtual driving skills to the test.

2020 GMC Sierra HD offers loads of tech

The 2020 GMC Sierra HD has finally been revealed, and it's a heck of a lot more subtle than the Silverado HD. Whereas the Chevy went with a wildly exaggerated version of the split grille and headlights the truck is known for, the Sierra simply builds on the 1500 model's design with an expanded grille that doesn't appear to be as tall or wide as the Chevy's. That's not to say it looks unimpressive, though. It's still got a massive fascia, it's just not as extreme as the one with a bowtie on it. With the Sierra's unveiling, we get more details about the powertrains available on the heavy duty GM trucks. The 6.6-liter turbocharged Duramax V8 makes 445 horsepower and 910 pound-feet of torque. That's the exact same output as the engine in the old models. But this time, the engine will be mated to an Allison-branded heavy duty version of the GM 10-speed transmission. A gas engine will also be available, but GMC hasn't revealed details on it yet. The new Sierra boasts a range of new features, some that are unique to it, and some shared with the Silverado. A shared feature is the new steps in the bed sides that are standard on all Sierra HD models. Unique to the brand is the MultiPro tailgate with fancy drop-out step. This tailgate will be available on all trims, and it's standard starting with the mid-level SLT. There are some useful visibility features being shown on the new Sierra, too, such as an available trailer camera system with 15 possible viewpoints, and it can virtually show the rear view on the screen as if there wasn't a trailer in the way. GM's rear-view mirror screen also makes an appearance. An AT4 off-road trim will be available on the new Sierra HD. It has slightly different styling with dark grilles and trim. Off-road upgrades include reworked springs and shocks, skid plates, standard all-terrain tires and a locking rear differential. Pricing has not yet been announced, but the truck goes on sale this summer. Details on prices as well as further specifications will likely be announced near the on-sale date. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.