Decades in the past, passenger vehicles were redesigned or retouched just about every yr or two, when trucks developed at a glacial speed. These days, vans - the two pickups and SUVs - have picked up their evolutionary speed, and this features pickups earmarked for hefty-duty use. Situation in point: Just three a long time ago, GM launched its recent Chevrolet Silverado and Lynnwood GMC Sierra HD, and they're currently currently being massively upgraded for 2011.

It's fascinating, then, that they don't search any unique. The new Lynnwood GMC Sierra developed a new, totally boxed ladder body, beefed-up front and rear suspension components, larger and much better brakes, and a new Duramax diesel engine that supplies equally stratospheric torque and more desirable fuel effectiveness. But other than a full-width chrome bumper and the relocation of the fake hood louvers, there is tiny you can see within or out that broadcasts to the entire world that there's something new about these vans.

Is That Some Torque in Your Pocket, or...?

The simple fact that there's so minor to brag about on the exterior is curious because, underneath the hood, GM is successful the previous sport of "mine's bigger" against Ford and Dodge. Whereas we furnished a thorough rundown of what's new on the 2011 Silverado and Lynnwood GMC Sierra HD again in February, what Lynnwood GMC Sierra didn't launch then have been the all-essential horsepower and torque ratings for its slightly revised six.-liter Vortec gas V-eight and closely reworked 6.6-liter Duramax diesel V-8. Only after Ford announced the output figures for its Super Duty pickups in March did GM toss out its unique figures: 360 hp and 380 lb-ft of torque for the gasoline V-8 and 397 hp and a monstrous 765 lb-ft for the new Duramax turbo-diesel, which arrives with a bespoke Allison six-pace automated transmission. (The gas engine's peak figures are unchanged from 2010, but the torque curve is broader and effectiveness is stated to be enhanced.)

The gasoline figures place the Vortec V-8 behind the 385 hp and 405 lb-ft of the Super Duty's new 6.2-liter V-eight, as effectively as the 383 hp and 400 lb-ft of the Ram 2500's 5.7-liter Hemi. But the Duramax vaults way out in front of the 350 hp and 650 lb-ft of torque of the Ram's 6.7-liter Cummins inline-six turbo-diesel, and even the mighty 390 hp and 735 lb-ft for the Super Duty's new Energy Stroke turbo-diesel V-eight. So whereas it's not an across-the-board smackdown, it can be argued that in the HD planet, where diesels are the crucial to the kingdom, the Duramax wears the crown.

Moreover, the Silverado 3500 is rated to tow up to 21,700 kilos with a fifth-wheel hitch, wherever the Dodge is rated for 17,600 pounds max. The Ford can pull up to 24,400, albeit only in even-burlier 1.5-ton F-450 form. The F-350 tops out at 20,300 lbs. Even now, there are few purposes for which ten tons of towing means (or the Dodge's eight tons, for that matter) aren't enough. The Silverado's 6635 lbs of bed ability is equally outstanding, despite the fact that we're not sure what particularly weighs about as significantly as a Hummer H2 and can fit in the mattress of a pickup.

In reality, disparities of 7 hp and 30 lb-ft involving trucks weighing nearly 4 tons are moment. Unladen, the Ram, Super Duty, and Lynnwood GMC Sierra HD are equally overqualified for the activity of standard transportation. In fact, lighting up the rear tires in the new Silverado or Sierra is totally no challenge-GM claims a -60 time of less than 9 seconds for the Duramax-powered 2500 and a quarter-mile time of less than 16 seconds. Accelerator travel is very long, a deliberate selection to permit more effective management of all that torque, and the engine is amazingly quiet and easy for this sort of a humongous and strong oil burner.

Stops and Turns, Also

The adjacent pedal also controls a considerably updated process. Substantially was finished for 2011 Lynnwood GMC Sierra not only to upgrade the brake hardware but also to enrich the pedal experience. As with the steering, the energy can make the truck experience far even more comfortable and, dare we say, even more carlike. Lynnwood GMC Sierra Diesel designs now come normal with a button-actuated exhaust brake, which makes use of the engine's compression to sluggish the automobile. This is achieved seamlessly and fairly correctly. Even with heavy loads in the mattress, the HDs we drove thus equipped necessary really tiny use of the brake pedal even on some of the steep Appalachian grades we descended on our drive. With the cruise manage on, it was a set-it-and-overlook-it affair.

The roads we drove had been normally silky easy. We encounted only a number of rough patches, which we identified to be managed heroically properly for this sort of a powerful and sturdily sprung truck. Credit the independent entrance suspension-nonetheless a GM unique in the HD segment-asymmetrical leaf springs, and rock-strong, fully-boxed chassis. The steering isn't as well light but rather properly weighted for a massive truck. It's also really precise, with a semblance of existence on middle-a little something of a rarity in the HD-truck segment.

New Denali is $18,000 Improve

Also present was Lynnwood GMC Sierra Denali HD, which, not surprisingly, is just like the gentle-duty version, only with sturdier guts and the choice to get the diesel engine and dual rear wheels. We drove a 2500 design outfitted with the 6.-liter Vortec and identified it to be fairly nice, although at its $46,860 value, some of the tricky-plastic interior panels begin crying out for padding. Or stitching. Or both. And the leather and "wood" superior each have to have to be introduced up a notch or two. Nevertheless Maxidas DS708, with its glitzy wheels and perforated grille-now with ribs-the Denali is as good-looking a truck as it's ever been in mild-duty type and a single that ought to appeal to several a boss looking for to assert his authority ahead of ever stepping out of the truck autel maxisys elite.

Lesser Lynnwood GMC Sierra and Silverado HDs get started at a far additional acceptable $28,960; both supply the upgrade to the Duramax with the Allison transmission for $7195. Looking at their formidable boosts in sturdiness, these charges, which see a slight grow from 2010, appear incredibly good.

The GMC Sierra Lynnwood also presents up Normal Motors' hybrid technique, which is obtainable in two-or 4-wheeldrive 1500-series (half-ton) crew-cab brief-box models. It operates at up to 50 km/h employing only its two 60-kilowatt electric motors contained inside an electronically variable 4-pace transmission.

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