GMC yanked a full 397 hp and 765 lbs/ft of torque from the 6.6-liter Duramax diesel engine nestled under the hood. That means that not only could you dominate any trail you set your mind to in this thing, you could also pretty much tow a full-size house along for the ride.
Here's the kicker though, they haven't decided whether they'll build it or not. In fact, they probably won't. That doesn't mean it will never see production though, because a private firm could always handle the assembly.
However, my money is still on Ford and their SVT Raptor. It comes standard with 411 horsepower and 434 lb.-ft. of torque, thanks to its 6.2-liter V8. This newly standard engine makes the F-150 SVT Raptor the most powerful half-ton pickup on the market. It comes standard ready for basically any off road conditions you can throw at it!