General Motors' new full size pickup trucks have arrived. Unlike pickups of the past, these are high tech machines using efficient engines with cylinder-deactivation to make sure those mpg figures stay as high as possible, even if they do have the aerodynamic profile of a brick on wheels.

The GMC Sierra All-Terrain HD Concept's a badass, no doubt. It's big. It's macho. It's American. And unlike the Ford Raptor or Ram Power Wagon, you can get it with a diesel engine.

Pickuptrucks.com's 2010 Heavy-Duty Shootout has dropped and it's their biggest comparo ever: nine heavy duty trucks, 3402-hp, 5845 lb-ft of torque, and copious truck abuse. We pitched in and got our first look at the impressive GMC Sierra Denali HD.

An undoubtedly vision-impaired car thief stole this "customized" GMC Sierra and, instead of doing the owner a huge favor and destroying it, bailed when cops caught up. He's still on the loose, armed with extremely bad taste. [WDBO]

A nationwide study examining police ticket data across the United States has revealed one very important list — which cars don't get tickets. We've broken down the list below.

This 2011 GMC Sierra 3500's been spotted completely without camouflage, sporting a Terrain-inspired grille and using the 6.6-liter Duramax diesel to tow a trailer. Supposedly a 7.0-liter direct-injection gasoline V8's in the works. Just toss the 8.1-liter in guys. [PickupTrucks.com]

We didn't think it'd ever happen, but this Texas GMC Sierra may have bested the Japanese high pipes as the strangest exhaust customization we've ever seen. The shooter's brother dubbed it "The Flatulator" (H/T to Brad!)