How powerful is the all new GMC Sierra 3500HD? Strong enough to take on the competition at PickupTrucks.com when it comes to hauling a huge load.

Available for a test run at Handy Buick GMC Cadillac  - 405 Swanton Road in Saint Albans, VT, the updated Sierra with diesel and dual-rear wheel power beat a slew of other rigs in this macho competition. PickupTrucks.com sent each vehicle up 2,200 miles of high-grade inclines, descents and through oppressive heat while towing 19,400 pounds in a trailer.

With a 6.6-liter Duramax diesel V8, the Sierra 3500HD produces 397 horsepower and 765 pound-feet of torque. It also includes revised rear springs, spring shackles, cargo box mounts and cargo boxes. This allowed Sierra to tow 23,000 pounds with a fifth-wheel trailer - up from 21,700 pounds from previous model. Sierra also upgrades its payload capacity of 7,215 pounds.

"When GMC says their trucks are 'Professional Grade' they absolutely mean it," Ted Nichols, general manager of a New Hampshire GMC dealership noted. "Every GMC truck is designed and built with the professional in mind. GMC owners are people who use their trucks to make a living, whether hauling livestock, construction equipment or anything else. They can't afford down time, so they chose the truck that will be there day-in and day-out."¹

Source: ¹http://readme.readmedia.com/Diesel-Powered-GMC-Sierra-Wins-2-200-Mile-Towing-Challenge/2960925