2013 Gmc Yukon Sle on 2040-cars

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2014 Chevy Silverado, GMC Sierra first pickups to ace updated NHTSA tests [w/video]

General Motors has just become the first pickup truck manufacturer to receive five-star overall vehicle scores in the National Highway Traffic Safety Administration's New Car Assessment Program. The updated safety standards, which went into effect in 2011, are more strenuous than the previous NHTSA curriculum and involve collecting both more and more substantial data, reflecting the improved safety inherent in newer vehicles. This feat is made more impressive by the fact that both Ford and Ram have released brand-new trucks since the new testing went into effect - GM's victory is no technicality.
The rating only applies to the redesigned, light-duty Silverado, Sierra and their upmarket variants, High Country and Denali, respectively, while only Crew Cab variants were tested. Considering that the four-door body style will make up 60 percent of GM's light-duty truck sales, the exclusion of the other variants seems reasonable.
This news is sure to be yet another feather in GM's pickup-oriented cap. Be sure to scroll down for video of the crash testing, as well as the full press release from General Motors.

GM's fullsize SUVs boost highway mileage by nearly 10 percent

We met the redesigned 2015 versions of the Chevrolet Suburban and Tahoe, and the GMC Yukon and Yukon XL at the 2013 LA Auto Show. Improved gas mileage numbers have been announced to go along with the improved exteriors and interiors, with city mileage improving by seven percent and highway mileage going up by nearly ten percent; you'll now get 16 miles per gallon in the city and 23 on the highway.
The only applies to models with the 5.3-liter engine, though, not the premium Yukon Denali and Yukon XL Denali SUVs with the 6.2-liter motor. Still, the 5.3 gets you more power than previously, with 355 horsepower and 383 pound-feet of torque underfoot, on top of the improved fuel economy numbers. The 6.2-liter sticks with official mpg ratings of 15 highway, 21 city. There's a brief press release below with words straight from the horse's mouth.

2015 Chevy Silverado, GMC Sierra can tow up to 12,000 pounds

Think back to the launch of the 2014 Chevrolet Silverado. At the time, General Motors happily trumpeted that its fullsize pickup could tow up to 11,500 pounds when properly equipped - impressive stuff, no doubt. But now, revised tow rating practices have been put into place, called SAE J2807. And with these new methods of testing, GM can now officially rate both the Silverado and its GMC Sierra twin as being able to tow up to 12,000 pounds.
Of course, not all Silverado and Sierra models are capable of this feat. In fact, because of SAE J2807, most of the truck models have actually had decreases in tow ratings from the 2014 to 2015 model year. For example, a 2014 Silverado Crew Cab with the 5.3-liter V8, 5.7-foot box and 3.73 rear axle was rated at 11,200 pounds in 2014, but has since been reduced to 10,800 in 2015. Same goes for the Sierra.
But for 2015, both the Silverado and Sierra can be had with a more powerful 6.2-liter V8, as well as a Max Trailering Package that includes a 9.76-inch rear axle, heavy-duty rear springs, revised shock tuning, improved cooling and a new trailer brake controller. There are also four- and seven-pin, bumper-mounted connectors, a trailer hitch (duh), and a G80 locking rear differential. This configuration, with either model, is the only way you can actually tow 12,000 pounds.