GMC Sierra All Terrain HD Concept 2011

The new Sierra HD underpins the All Terrain HD concept, with a modified, production-based 4WD chassis and the Duramax diesel/Allison 1000 six-speed powertrain. The enhanced suspension and unique body dimensions, including increased ground clearance and wider track, as well as greater approach/departure angles, deliver off-road capability while maintaining HD levels of payload and trailering capacity. The All Terrain HD is painted Iridium Metallic – a dark charcoal color that reveals a reddish, anodized inflection when viewed from certain angles.

Based on the chassis of the 2011 Sierra HD trucks, the All Terrain HD features a fully boxed steel frame with exceptional strength and torsional stiffness. It incorporates the production models’ new independent front suspension and asymmetrical rear leaf-spring suspensions, but with a wider 73-inch (1,853 mm) track (front and rear) that enhances stability during off-road and highway driving. A production Sierra 2500HD has front and rear tracks of 68.8 inches (1,748 mm) and 67.3 inches (1,709 mm), respectively.

The GMC Sierra All Terrain HD concept is propelled by the new, production 6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission powertrain combination offered in the 2011 Sierra HD trucks. The Duramax is rated at 397 horsepower (296 kW) and 765 lb.-ft. of torque (1,037 Nm).

The powerful 6.6L Duramax is more fuel-efficient – with up to 11-percent greater fuel economy than previous versions – and reduces NOx emissions by up to 63 percent. The powertrain’s efficiency is assisted by the Allison 1000 transmission, which requires less engine power to funnel torque to the axles. It also incorporates a “smart” exhaust brake feature that helps save wear on the brakes on downhill grades, a feature available on production Sierra HDs.

GMC Acadia SLT-1 AWD Wallpapers

GMC Acadia SLT-1 AWD Picture

GMC Acadia SLT-1 AWD Photo

GMC Acadia SLT-1 AWD Elegant Interior

The 2010 GMC Terrain

2010 GMC Terrain is another excellent compact crossover SUV from the house of General Motors. The Chevy Equinox and Terrain share several auto parts and even the basic architectural design, though Equinox looks more like a redesigned Terrain.
Looking at the salient features of the latest generation Terrain models, you'll discover that General Motors has incorporated several unique things in the new Terrain such as the 2 pulse techniques with a direct infuse engine injection that helps the engine in starting up faster in cold weather too.
The 2010 Terrain will be marketed in four trims viz SLT-1, SLT-2 as well as SLE-1, and SLE-2. The SLE-1 and 2 will be the base trims offering the standard features, while the SLT trims will offer heated front seats, leather upholstery, and other advanced features.
In 2010 GMC Terrain, fuel economy is going to be yet another extraordinary aspect. A 4-cylinder model with front-wheel drive has bagged EPA calculation of 22mpg on city and 32 mpg on highways, making an overall average of 26 mpg altogether; this is stupendous for an SUV of its kind. The 3L V6 also achieves 20+ mpg, along with plentiful power punch to tackle the hilly tracks. The latest generation V6 powered GMC Terrain comes with a towing capacity of 3500 pounds.
What's more, the new Terrain isn't going to be a costly affair despite all its goodness, and will stand forth in the race of the most affordable compact crossover SUVs as well. So, keep an eye on its release this year, and how it really performs when it hits the roads worldwide.

GMC Yukon Hybrid Review 2010

MSRP: From $ 51,185

Powertrains and Performance
The 2010 GMC Yukon Hybrid is available with rear-wheel or four-wheel drive. Both models utilize a 6.0-liter V8 engine coupled to a pair of 60-kilowatt electric motors located inside what GM calls an electrically variable transmission. Together, they produce 332 horsepower and 367 pound-feet of torque. The system can accelerate the Yukon up to speeds of approximately 25 mph using electricity only, while the V8's cylinder-deactivation system helps reduce fuel consumption at higher speeds. Regenerative braking replenishes the batteries by capturing energy normally lost when you come to a stop.

Fuel economy ratings stand at 21 mpg city/22 mpg highway and 22 mpg combined for rear-wheel-drive Yukon Hybrids, with 4WD versions earning identical numbers except combined, which is just 1 mpg less. Maximum towing capacity for a properly equipped 4WD model is 6,000 pounds.


Driving Impressions
It's not a stretch to say that driving the 2010 GMC Yukon Hybrid feels like being behind the wheel of a 5,600-pound Prius. There's the same eerie quiet when accelerating and braking, as the gas engine shuts off to let the electric motors do their thing. Although it's a tad strange, the result is a quiet cabin, while transitions between gas and electric modes, and eight- and four-cylinder mode, are either undetectable or easy to ignore.

Although the Hybrid is the most powerful Yukon available, it's also the heaviest, so don't expect particularly brisk acceleration. Also, the transmission isn't what we'd call responsive; there can be a notable delay when you ask for full power. Handling is about what you'd expect -- safe but ponderous. Most crossovers are notably more carlike from behind the wheel. The Yukon's cabin remains fairly quiet at speed, though, and the ride is relatively smooth for a truck-based SUV.