2017 GMC Sierra 2500HD / 3500HD - With their immense towing and hauling abilities, heavy-duty pickup trucks are trickier to evaluate than, say, a Porsche Boxster. Renting a racetrack or rocketing down our favorite back road is pretty straightforward, but we don’t always have a 40-foot horse trailer or a spare bulldozer to lug around, let alone the commercial driver’s license that such a load can require.
Which is why we joined GMC in the Rocky Mountains for some jobsite schooling with the updated 2017 Sierra 2500HD and 3500HD—the tonier twins of the 2017 Chevrolet Silverado HD trucks that round out Detroit’s latest class of junior Peterbilts.
We put Chevy’s latest HD trucks to work at last year’s State Fair of Texas during an all-too-brief orientation. But exercising these rigs on the open road, at high altitudes, and under various loads is a different matter.
Our drive started out in Moab, Utah, and meandered over craggy, snow-capped peaks to Telluride, Colorado (8750 feet above sea level), with stops along the way to exercise General Motors’ new Duramax diesel engine and the Sierra’s enhanced workday skills.
Whereas Ford took a more comprehensive approach to revising its 2017 F-series Super Duty trucks including stronger frames, fresh aluminum bodywork, and a boost up to 925 lb-ft of torque for its Power Stroke turbo-diesel V-8 GM focused primarily on a new diesel powertrain and the refinement of its big trucks at their working limits.
A 360-hp 6.0-liter gasoline V-8 carries over as the base engine in the Sierra HD, but our time was spent exclusively with turbo-diesel models in the top-grade Denali trim, which accounts for about half of GMC’s heavy-duty sales, with most buyers choosing diesel power.
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Source : http://www.caranddriver.com/reviews/2...
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supercars for smiles Hot News GMC Sierra 2500HD 3500HD 2017 | |
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