The new line of Sierra trucks from GMC offers many variations and options packages much like its Chevy Silverado counterpart. There are barebones setups that can save the buyers thousands of dollars, but some of the most asked for features may cost more. The Sierra trucks offer a surprisingly generous amount of miles per gallon fuel economy. The GMC Sierra trucks can get as much as 22MPG while it still boasts the ability to tow up to 6,200 pounds. There are very few other models that are as powerful and economic at the same time.The top of the line engine offered in the Sierra line is a big 4.3 liter V-6 engine that can produce a whopping 403 horsepower. Most trim packages can come in 2WD or 4WD but most owners are not willing to pay for this upgrade unless they are really going to use it often. There are new upgrades to the OnStar system that is available in the 2011 Sierra, the new OnStar 9.0 was just implemented. Other than this update there have been very little if any changes at all since the 2010 release of the Sierra truck.
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