A four-wheel drive with the same Duramax is estimated at 22 MPG city / 27 MPG highway. A standout feature on the 2023 Denali is the World’s First Six-Function MultiPro Tailgate. The name itself ...

With fresh interior and exterior styling along with new Denali Ultimate and AT4X ... except for the base Sierra Pro. GMC's 3.0-liter Duramax was updated in 2023 with new steel pistons, a retuned ...

GMC has also improved the horsepower and torque ratings of the optional Duramax turbo-diesel ... can go in its top-of-the-line Denali Ultimate trim. The 2023 GMC Sierra is a full-size pickup ...