The development of a new 6.6-liter V8 turbo-diesel that delivers 445 horsepower and 910 pound-feet of torque is not small news; now GMC truck shoppers have even more powerful options for towing and hauling.
“GMC Heavy Duty trucks are all about capability, refinement and performance,” says Jeff Luke, executive chief engineer for GMC trucks.
Watch the video above to see more of the 2017 Sierra HD, and to learn about its terrific updates for the new year. You can also check out our inventory of 2016 Sierra HD trucks.
