The luxurious Denali trim level equips the competent American full-size truck with a powerful V8.

A strong vehicle in its own right, the full-size GMC Sierra truck is GM's own Chevrolet Silverado's sister.

GMC's Sierra is already a strong vehicle with a tonne of room for personalization and choices,

but the 'Denali' trim offers a distinctive combination of elegance and luxury to further set it apart from the competition.

Additionally, it opens the magnificent 6.2-liter V8, which has more power than the 5.3-liter. 

The GMC Yukon full-size SUV also offers Denali as an available grade, and it already has supporters

We quickly examine the daring Sierra Denali to determine what makes it stand out and, more importantly

You would assume that a truck this big would have a powerful engine, and you would be right three times over. 

 Two of the three possible choices for the Denali model are the 3-liter diesel and the 5.3-liter V8,

The standard engine in the Sierra is a 2.7-liter, four-cylinder turbo that produces 310 hp and 430 lb-ft of torque.

Starting with the well-known 3-liter Duramax turbo diesel, which offers 277 horsepower and 460 pound-feet of torque,

the 5.3-liter EcoTec3 V8 offers up 355 horsepower and 383 pound-feet of torque, and the top-of-the-line 6.2-liter EcoTec3 V8 is capable of up to 420