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Old 11-27-2007, 09:01 AM   #1
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"Green" Car of the Year

3 of the 5 finalists are GM autos....the winner? Follow the link.

http://autoshow.autos.msn.com/autosh...mentid=5729898

Damn fine work by GM.
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Old 11-27-2007, 09:15 AM   #2
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A HUGE congratulations to GM!

And who would have thought a Tahoe would win 'Green Car of the Year'?!

Very impressive.
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Old 11-27-2007, 09:16 AM   #3
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Excellent.
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Old 11-27-2007, 09:28 AM   #4
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That is awesome! I love the new Tahoes anyway but that just makes me love em even more!!
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Old 11-27-2007, 09:51 AM   #5
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Anyone can make a compact car clean and efficient. It takes real skill to make a large SUV like the Tahoe clean and efficient.
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Old 11-27-2007, 12:23 PM   #6
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Good news...
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Old 11-27-2007, 04:18 PM   #7
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I wonder when the diehards of the Japnanesse cars will give up their gas guzzlers . . .

It looks like they had a good variety of judges for that. Mr Shelby, Jay Leno, guy from Sierra Club and so on.I wouldn't be surprised if GM takes the top spot next year with the Silverado Hybrid.
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Old 11-27-2007, 04:23 PM   #8
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Quote:
Originally Posted by DGthe3 View Post
I wouldn't be surprised if GM takes the top spot next year with the Silverado Hybrid.
I am really looking forward to that one
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Old 11-27-2007, 09:02 PM   #9
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I am really looking forward to that one
You and me both.

We're trading in the Tahoe here in the next week or so for an Enclave, but I wouldn't mind getting the Silverado Hybrid. I could actually drive my entire trip to work such that the truck would be electric only. It might take me an extra 2 minutes, but no gas used all week long....that would be sweet.

It would also leave more for me to run in the Camaro
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Old 11-27-2007, 09:07 PM   #10
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Quote:
Originally Posted by Silverado View Post
We're trading in the Tahoe here in the next week or so for an Enclave, but I wouldn't mind getting the Silverado Hybrid. I could actually drive my entire trip to work such that the truck would be electric only. It might take me an extra 2 minutes, but no gas used all week long....that would be sweet.
Wait...what? you might need to elaborate on your trip to work...
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Old 11-27-2007, 09:09 PM   #11
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Great accomplishment for GM. =]
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sorry guys.. sold Camaro and got a Cadillac CTS, waiting for a few years to get a 2010 SS used ;]
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Old 11-27-2007, 09:52 PM   #12
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I'm so proud
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Old 11-28-2007, 03:45 AM   #13
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Right on!!
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Old 11-28-2007, 09:59 AM   #14
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Wait...what? you might need to elaborate on your trip to work...
According to what I've read about the Silverado Hybrid, it will operate solely on electric power up to 30mph, loaded, unloaded, towing or not, up to 30mph it's electric only. To get to work, I currently cut through 2 neighborhoods and then drive just about a mile and a half down a major street and part of a frontage road to get there. But, I could go a slightly different route that would take me through 1 additional neighborhood and over about half a mile of a major street, but the speed limit on that street is pretty low.

So, I could actually make the entire trip to work under 30mph and go completely electric while still having all the towing/load hauling/people moving/4x4 capabilities of my Silverado. I like that idea.
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Old 11-28-2007, 10:27 AM   #15
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But unless it has massive batteries it won't be able to run on electric only for very long. Its meant more for accelerating from a stop up to that or for short stints of stop and go driving like in trafic jams.
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Old 11-28-2007, 10:52 AM   #16
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Quote:
Originally Posted by DGthe3 View Post
But unless it has massive batteries it won't be able to run on electric only for very long. Its meant more for accelerating from a stop up to that or for short stints of stop and go driving like in trafic jams.
You may very well be right about that...but it isn't really addressed in the Press Release (see below).

2009 CHEVROLET SILVERADO HYBRID IS THE INDUSTRY'S
MOST FUEL-EFFICIENT FULL-SIZE TRUCK

LOS ANGELES – Affirming its commitment to fuel solutions and truck leadership, Chevrolet announced the 2009 Chevrolet Silverado Hybrid, a full-size pickup that achieves 40-percent greater city fuel economy and a 25-percent improvement in overall fuel economy. It is expected to be the most fuel-efficient full-size pickup on the market, besting the current V-8 leader – the non-hybrid Silverado.

Partnering General Motors' patented 2-Mode Hybrid system and a powerful 6.0L gas V-8, the Silverado Hybrid delivers highly efficient performance while maintaining full-size pickup capability. The hybrid system provides all-electric driving at low speeds, allowing fuel savings to be realized even when the truck is fully loaded or towing a trailer. Silverado Hybrid can tow up to 6,100 pounds (2,767 kg).

"The Silverado Hybrid is the newest example of Chevy's heritage of truck innovation, which stretches back 90 years, and exemplifies Chevrolet's commitment to fuel solutions," said Ed Peper, Chevrolet general manager. "Silverado Hybrid will deliver fuel economy comparable to many small and midsize trucks that are equipped with four- or six-cylinder engines – all while delivering the capability customers expect of Chevy full-size trucks."

The Silverado Hybrid goes on sale in late 2008 and is based on the award-winning Silverado platform that was introduced for the 2007 model year. It will be offered in the Crew Cab body style; 2WD and 4WD models. Each model features Silverado's "Pure Pickup" trim and comes standard with several popular features, including StabiliTrak electronic stability control system, a locking rear axle and a trailering package.

"Silverado has one of the broadest and deepest lineups of models, configurations and capabilities," said Peper. "The Silverado Hybrid adds to the breadth and depth of offerings, while carrying the core elements that make Silverado one of the most well-equipped and safest trucks in the market."

Silverado offers dual-stage frontal air bags and head curtain side air bags; and is the only full-size truck with five-star side impact ratings in federal crash tests.

Hybrid details

The Silverado Hybrid's fuel-saving performance is derived from GM's advanced Electrically Variable Transmission (EVT) and 300-volt nickel-metal hydride Energy Storage System (ESS), which work in concert with the standard 6.0L V-8 Gen IV gasoline engine with Active Fuel Management (AFM) and late intake valve closing (LIVC) technology. GM's hybrid technology system not only enables the Silverado to launch and drive up to 30 mph on electricity alone, it also allows the 6.0L V-8 engine to operate in its more economical V-4 mode for longer periods.

With GM's 2-Mode Hybrid system, the electric power used to propel the vehicle is generated by the hybrid system itself. When the brakes are applied or the vehicle is coasting, the electric motors within the hybrid system create electricity that is stored in the 300-volt battery. This stored energy is used to move the vehicle and the regenerative braking cycle is renewed.

The 2-Mode Hybrid system provides seamless, dependable power on demand in an efficient package. In fact, its electric motor is less than half the size of those in single-mode hybrid systems. This technology was developed and is still used in fleets of hybrid transit buses in more than 70 North American and European cities. Scaled-down for use in passenger vehicles, the 2-Mode system delivers fuel savings where it is needed most – in large vehicles with high levels of capability. It is a core part of GM's energy diversity efforts, which are centered on reducing dependence on petroleum, improving fuel economy, reducing emissions and minimizing the automobile's impact on the environment.

With the fuel mileage savings of the hybrid system and Silverado's 26-gallon (98-liter) fuel tank, the Silverado Hybrid has a cruising range of more than 500 miles – enough to drive from San Francisco to San Diego.

Quiet and smooth

Integration of the hybrid system on the Silverado is seamless – the battery pack is located in the chassis, beneath the rear seat – and perceptible only in what it lacks: noise.

"The Silverado Hybrid is exceptionally quiet," said Mark Cieslak, vehicle chief engineer. "From a passenger's perspective, the refinement of the hybrid system is quite evident throughout the driving experience, and showcases itself when the vehicle is moving under electric power."

Contributors to the quiet driving experience include:

* New exhaust system and resonator tuned for the 6.0L engine's Active Fuel Management operation
* Additional engine intake induction tuning for reduced interior noise and pleasing sound quality
* Low-rolling resistance, "quiet-tuned" P265/65R18 tires for reduced road noise
* Electrically driven 300-volt air conditioning compressor reduces vibration and allows the HVAC system to cool the passenger compartment even when the gasoline engine is shut off. Includes the standard tri-zone HVAC system
* Electrically driven 42-volt variable-assist power steering reduces vibration and provides up to a 0.5-mpg fuel economy improvement by reducing parasitic losses common in belt-driven hydraulic systems
* Energy Storage System (ESS) cooling system internal fan is tuned to be quiet at low vehicle speeds when the fan could more easily be heard by the occupants

Along with quietness, the Silverado Hybrid also delivers exceptional driving smoothness, thanks to specifically tuned shocks for its Z85 suspension and a new, hydraulic body mount. Located on the passenger-side of the chassis, the hydraulic mount provides a dramatic improvement in highway driving smoothness, particularly on rough or choppy road surfaces.

"The hydraulic mount makes a dramatic improvement in ride quality," said Cieslak.

Additional details specific to the Silverado Hybrid include aerodynamic aids. A slightly deeper front air dam and a hard tonneau cover for the bed reduce air drag, fostering maximum efficiency. The tonneau cover has a three-segment design that enables easy folding or removal.

Trailering performance

In addition to increased fuel economy, the Silverado Hybrid's electrically variable transmission also provides tremendous trailering capability, enhancing the smoothness and driving quality when towing. Electric drive is enabled up to approximately 30 mph (48 km/h), even when towing, allowing fuel savings when the truck is towing a trailer.

"Along with being very smooth, the EVT always provides abundant torque at all RPM levels for easy towing," said Cieslak. "It is particularly helpful on grades, as the EVT's greater ratio spread allows the engine to hold optimal rpm for smooth, steady performance, with no hunting between higher and lower gears."

The EVT incorporates grade braking and tap up/tap down shift control. It also benefits towing on curves or lower-speed back roads, as exceptionally smooth gear transitions eliminate the "shift shock" torque disruption that can occur during abrupt shifts, such as when slowing or braking.

"All-around driving performance, whether towing or not, is excellent," said Cieslak. "The smoothness and quietness of the EVT is the icing on the cake that comes with fuel savings."

Hybrid heritage

The 2009 Silverado Hybrid is the second full-size hybrid pickup from Chevrolet. The previous-generation Silverado was offered as a mild hybrid that professionals found useful as a power generator at worksites.

The new Silverado Hybrid, which features GM's sophisticated hybrid system answers the needs of a broader range of customers and takes advantage of significant technological advances that have been realized since the previous hybrid was offered. The Silverado Hybrid joins the recently introduced Tahoe Hybrid, which also uses the 2-Mode system.

Chevrolet is one of America's best-known and best-selling automotive brands. With the largest dealer network in the United States, Chevy is the leader in full-size trucks and the leader in sales of vehicles priced $35,000 and above. Chevrolet delivers more-than-expected value in every vehicle category, offering cars and trucks priced from $9,995 to $83,175. Chevy delivers expressive design, spirited performance and great value with standard features usually found only on more expensive vehicles. More information on Chevrolet can be found at www.chevrolet.com.


Either way, I'm looking forward to it.
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Old 11-28-2007, 11:04 AM   #17
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okay, I get what you're saying now Silverado. But I agree - though the regenerative braking may help a little...lol it'll be a close call whether or not the batteries will have the capacity for that whole trip.

It's a good idea though. NOW- to offer the truck at only 2-3k more than normal for a hybrid...like the Malibu
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Old 11-28-2007, 12:37 PM   #18
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This is where GM excels -keeping cost down. By sharing the same technology across multiple platforms the development costs come way down. There are at least 2 trucks that will use this system, probably more. I can hardly believe that a Silverado will be getting the same milage as a Camry. The truck weighs 50% more and has 50% more power. Incredible
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