Showing posts with label GMC. Show all posts
Showing posts with label GMC. Show all posts

Tuesday, September 30, 2008

GMC Sierra V-8: Only for the Serious Trucker

2008 GMC Sierra Denali Crew Cab front right.JPG

For all those individuals out there who really need a truck, and use a truck the way it's meant, GMC has thrown itself into the mix as possible top dog with its latest 6.6 liter Duramax V-8 diesel.



660 lb-ft of torque and 365 bhp ensure that if you're behind the wheel of a new Heavy Duty Sierra, you won't be looking longingly at anyone else wishing you had more power to move your load. Those numbers give it a 10 lb-ft advantage over its Blue Oval and Mopar rivals, and a 40 bhp advantage over the Ram and 15 bhp over the Super Duty.

Best of all, the motor is covered by a best-in-class 5 year/100,000 mile warranty

Our take? Those are some serious, serious numbers.


via Automobile Magazine

2008 GMC Yukon Hybrid flattens Toyota Prius

2008 gmc yukon hybrid front left.JPG

General Motors got another boost to it confidence when its 2008 GMC Yukon Hybrid was rewarded with the 2008’s Best Engineered Vehicles by Automotive Engineering International.



Automotive Engineering International is a magazine published by the Society of Automotive Engineers and is based in Pennsylvania.
The magazine readers and editors appear most impressed with the two mode version of hybrid featured on the Yukon. The system, also used by Toyota, allows the vehicle to run on electricity and gasoline or a combination of both.

Both 2008 two-wheel drive Chevrolet Tahoe Hybrid and the 2008 GMC Yukon Hybrid get 21 miles per gallon in the city and 22 mpg on the highway. The four wheel drive versions get 20 mpg in the city and highway.

The two mode hybrid technology will also appear on other GM
models in the coming years.

The award is based on votes of editors and readers of the magazine.


via The Car Connection

General Motors works with dealers to maximize space

gm-car-dealershipjpg

Earlier this year, we reported that General Motors appeared to be planning to cut down on the number of dealerships they have in the U.S. Right on the heels of that announcement comes word that the American auto maker wants to convert their dealerships into “superstores” appearing in major metropolitan areas to maintain a high profile.



The call for such a plan has become necessary because many dealership owners in big cities are actually selling their dealerships because the real estate on which they rest is more valuable. The “superstore” would put all GM brands under one roof and should help preserve their presence in cities where real estate is costly.

To create space for bigger showrooms to exhibit the vehicles at the “super stores” dealers will be asked to place their service and parts departments in other locations.

More details can be found at FP Posted. This might prove out successful. By combining space to exhibit their entire brand line, we would think the dealer network would be a lot more efficient. No wasted stores in the big cities. But there is the inconvenience of having parts and service somewhere else.

[Editors' Note: At an informal round table with Mark LeNeve, GM's North America VP of Sales, Service, and Marketing, at the Chicago Auto Show, he explained that the the automaker was, yes, helping certain dealership move their repair facilities offsite or pair various brands together (i.e., Chevrolet and Buick). However, this is in cooperation with the dealerships who, faced with rising real estate prices, want to maximize floor space as much as possible. There is no over-arching policy forcing such separation/mergers. GM continues its four major segments (i.e., Buick/GMC/Pontiac, Cadillac, Chevrolet, Saturn).]

2007 GMC Sierra/Chevy Silverado Truck Challenge: Tests

2007 toyota tundra front right.JPG

The first test I participated in was the trucks' towing and trailing capabilities. For this test, a 9,000 lb trailer (approximately 4 tons) was hooked to each vehicle. I tested, in order, the Ford F-150, the Toyota Tundra, the GMC Sierra, and the Chevrolet Silverado.



All the vehicles performed smoothly on the road. I was surprised, expecting more noise and body flex. The drive itself was almost car-like with none of the trucks sounding strained with their heavy load. The Ford, though, had the noisiest engine. Finally, the Chevrolet Silverado seemed the most strained during the obstacle part of the test where I drove quickly around various cones to simulate quick lane changes.

But the F-150's reaction was nothing compared to the Tundra. Not only did it suffer tire squeal, but my driving triggered its traction control system. I was quite surprised since none of the other three trucks reacted the same way and I had not changed my driving speed or pattern.

In the second half I raced the various trucks up a sloping road (7.2 % grade) to test their ability to quickly pass slower vehicles on mountain roads. Living in mountainous areas all my life, I could appreciate such capabilities.

The GMC Sierra easily bypassed the Ford F-150 and the Toyota Tundra. Engine noise from the former had me nearly shouting to my GM passenger and, again, the truck felt strained climbing the road. The Tundra's traction control activated again at launch, making it impossible for it to come close to the Sierra. I would later trigger the Tundra to shut down during the traction control part of the event.

I'll admit I was nervous during the next two tests. The first, Launch Feel and Braking, had me drive around 60 mph in a curve. While my fellow journalists may scoff at such an issue, I'm notorious among my family and friends for slowing down at the least sign of a bend in the road. But all the trucks handled beautifully, none of them straining at such high speeds; I never felt I would lose control.

After checking out the trucks' towing capacities, I tested each truck's braking system by decelerating from 60 miles per hour to a complete stop as quickly as possible. Images of being flung into the windshield danced in my mind as I slammed my foot on the brakes in my first test vehicle, the Nissan Titan. I shouldn't have worried; the vehicle stopped just fine without stress. I repeated the test in the Titan, Ford F-250, the GMC Sierra, and the Tundra. The Sierra did the best, shortly followed by the Tundra. The Titan's engine was noisy compared to GM and Toyota's offerings, though the F-250, with its diesel engine, was the worst in relative terms. The Ford also had the worst fit-and-finish compared the competition, with wide gaps in the interior paneling and mismatched shapes like the AC vents.

If the Launch Feel and Braking event made me nervous, the next event, the Ride and Handling one had me downright scared. In this test, I would drive the various trucks through a wet surface to test their traction control systems. Note that I have never, in over two decades of driving, ever trigged any of my vehicles' emergency systems. Yet here I was trying to do so deliberately and with much larger vehicles!

I drove the Chevrolet Silverado and Toyota Tundra, each time accompanied by a GM representative. In the first half of the test, I entered each truck into the wet surface at approximately 30 mph and used the anti-lock braking system to control it. The Chevrolet Silverado handled with aplomb; I never felt a loss of control and, in fact, barely felt the slippage. I had a more difficult time using the Tundra's anti-lock brake system; the truck literally kept wanting to slip away from my control. It took several judicious pumps on the brake pedal to stabilize it.

The second half had me test each truck electronic stability control system, or ESC. I drove the trucks into the wet surface again. This time, I took my foot off the accelerator to try to control it just by the steering wheel. Getting out of the slide was more difficult and I found myself overcompensating many times. While both trucks' systems ultimately made it manageable, the Tundra's system was definitely the noisier of the two. I also discovered that its systems were only active in 2WD mode; it could easily be disable if the Tundra switched to 4WD. Safety systems on the GMC Sierra and Chevrolet Silverado remain active in both drives, though a GM representative did reveal how to disable them for off-road travel.

Among all the tests, I found the Ride and Handling event the most informative since it revealed an oft-hidden but demanded feature of trucks: their safety systems. It's also one of the most difficult to duplicate among media vehicles, since most journalists rarely try to actually trigger a car's safety systems outside of controlled enviroments.

The last event tested each truck's traction control system. The event simulated a truck's capabilities in climbing a steep road in slippery conditions. I drove a Ford F-350, the GMC Sierra, and the Tundra.

The Sierra did fine, able to get its grip quickly on the "slippery road" (which constituted wetted tile). And while the Tundra eventually make the climb, it was quite noisy. Worse, it slipped on the surface and the engine sounded like it turned off; I had to switch to neutral to resume the climb.

The Ford F-350, with its limited slip differential, could not even make it up the road, stalling half-way through.


2007 GMC Sierra/Chevy Silverado Truck Challenge: Intro

112_news060828_02z 2007_GMC_sierra front_view.jpg

Last week, I attended the the GMC Sierra/Chevrolet Silverado Truck Challenge at GM's Milford Proving Grounds.



There, I had a chance to test-drive not only the all-new GMC Sierra (Denali trim) and Chevy Silverado, but compare them to the Ford F-Series, Nissan Titan, and, of course, the all-new Toyota Tundra. While GM had made the Dodge Ram available, I did not have the time to drive it.

This week, I will discuss the tests and my findings over several blog posts.