Every Photo of the Heavy Duty 2020 GMC Sierra

The new 2020 GMC Sierra heavy-duty pickup truck has just crested the horizon, hot on the heels of Chevrolet’s redesigned Silverado HD. As you’d expect, the styling is the biggest differentiator between the two trucks, which is either a good or a bad thing depending on how you feel about the Silverado HD's polarizing new face. The new GMC also introduces a few optional features that are said to help with towing, hauling, and other truck tasks.

As before, the Sierra HD range comprises 2500 and 3500 models and offers myriad bed and cab configurations.

Similar to what we've seen with the Silverado HD's various trim levels, the Sierra's different models-which mirror the light-duty Sierra 1500's lineup of SLE, SLT, off-road-oriented AT4, and fully loaded Denali models-all look fairly different from one another.

The GMC has extra chrome and in-your-face grille compared with the Chevy, but its 35,500-pound max towing capacity remains intact.

Options include the light-duty Sierra's MultiPro tailgate with a few different positions, a 15-inch head-up display, and a camera system that displays various views of the trailer.

The GMC has extra chrome and in-your-face grille compared with the Chevy, but its 35,500-pound max towing capacity remains intact.

Appealingly, the Sierra HD gets the same trick MultiPro multi-way, reconfigurable tailgate as the 1500, as well as a head-up display and a system of cameras that can display whatever trailer the Sierra is towing. The HD will be offered in the same trims as the 1500, including off-road-ready AT4 guise and super-luxe Denali spec.

As for the Sierra HD's dirty bits, there isn't much variation from the new Silverado HD's powertrain offerings, which include a gasoline V-8 and a turbo-diesel V-8.

The diesel is the same 6.6-liter Duramax unit from the current truck, making the same 445 horsepower and 910 lb-ft of torque but now mated to an Allison 10-speed automatic transmission to replace the old six-speed.

The only facts that GM has shared on the gasoline powertrain so far are that it is a new engine and that it pairs with a six-speed automatic transmission.

Payload and towing capacities are said to rise, with a claimed maximum towing capacity of more than 30,000 pounds, but the GM trucks will have their work cut out for them beating the new Ram HD trucks, which offer up to 1000 lb-ft of torque, and Ford's F-series Super Duty pickups.

More specifications, including pricing, will be available when the trucks make their official debut in February at the Chicago auto show.

GMC says that the Sierra HD will go on sale in the second half of this year.