Friday, February 11, 2011

Hummer H2 SUV Concept, 2002

Hummer H2 SUV Concept, 2002

 

The H2 is the second vehicle sold under the Hummer marque of General Motors. It is a large SUV (though smaller than the Hummer H1) with room for five passengers and substantial off-road ability. The rearmost part of the H2 SUV was modified to a pickup truck bed for the 2004 H2 SUT ("Sport Utility Truck").

Overview
The H2 is built under contract by AM General at a specially constructed plant in Mishawaka, Indiana, USA. Although it shares GM's GMT820 truck platform with the Chevrolet Tahoe and GMC Yukon, those vehicles differ in many ways and are constructed in three other GM plants. The H2's final frame assembly is made up of 3 sections: The front uses a modified GM 2500-Series utility frame, the mid-section is all new and is completely boxed, and the rear section uses a modifed GM 1500-Series frame which is upgraded for the 8000 pound (3629 kg) gross vehicle weight.

H2 sales were initially strong, but fell to 28,898 for 2004 and 23,213 for 2005.
The H2 was nominated for the North American Truck of the Year award for 2003.

Engine
2003–2005 6000 6.0 L (366 in³) V8

Capabilities
With its high ground clearance, large tires, protective underbody plates, and low gearing, the H2 is capable of climbing over a 20-inch-high (0.4 m) step-up wall. A massive truck frame and wide track offer stability against overturning compared to some of the more common light truck SUVs, although objective tests have not been performed by the government or other outside parties due to its specialised vehicle class.

Fuel economy
For typical travel on improved roads, users report fuel economy of between 10 and 14 miles per gallon, which converts to between 14 and 17 L/100 km. Worst case urban driving is said to be in the range of 8 to 14 U.S. mpg (21 to 25 L/100 km). Although General Motors does not provide official H2 fuel economy ratings, most reviews have observed high single to low double-digit mileage, similar to the numbers above.

It should be noted that other large vehicles also have poor fuel economy especially with optional larger engines including the Dodge Ram 1500 series pickup trucks equipped with either the 8.3L V10 (MSRP US$48,500) or the 4.7L V8 Flexible Fuel engine running E85 fuel (MSRP US$31,300). Both of these engines are rated at 9 U.S. mpg city and 11 U.S. mpg highway by the E.P.A. as one example.

Tax benefits
Under the United States income tax code, the cost of vehicles over 6,000 pounds (2722 kg) can be deducted from income. This deduction was enacted decades ago to assist self-employed people in purchasing a vehicle for business use. The weight minimum was intended to limit the deduction to commercial-type trucks. For many years, the deduction remained below the average cost of a new vehicle, since large trucks were relatively inexpensive. Since it is a reduction in taxable income, the actual value of this deduction averages 30% of the price of the vehicle in question.

The increasing popularity of these vehicles in the last decade, however, pushed their average price to nearly double the average passenger car cost. In response, the 2002 Tax Act increased this "Section 179 depreciation deduction" to US$75,000, and it rose again to US$102,000 for the 2004 tax year. This is more than three times the current average cost of a passenger car in the United States and covers a large number of luxury models, including the Hummer H2. In late 2004, the deduction was again reduced to US$25,000.

Hummer H, 2002

Hummer H, 2002

 
 

The Hummer H1 is a civilian vehicle based on the High Mobility Multipurpose Wheeled Vehicle (HMMWV), popularly known as the Humvee, which was created by AM General.

Specifications
The Hummer H1 has three common variants: a convertible-like soft top, a four-door hard top pickup truck and a Wagon body version. Other less known variants include a two-door pickup truck and a four-door slantback. At this time, the convertible/soft top and the station wagon versions are the only ones available in the mass market. The two door and four door pickup versions are only available in fleet livery.

Five engine types and three automatic transmission types can be found in Hummer H1s. The common engine/transmission combinations are:
    * 6.2 L Detroit Diesel V8/GM TH400/3L80 3-speed
    * 6.5 L Detroit Diesel V8/GM 4L80-E 4-speed
    * 5.7 L Vortec 5700 gasoline V8 TBI/GM 4L80-E 4-speed
    * 6.5 L turbo Detroit Diesel V8/GM 4L80-E 4-speed
    * 6.6 L Duramax LLY turbo Diesel/Allison 1000 5-speed (model year 2006)

The Hummer H1 shares some common driveline parts with its HMMWV brethren. Items like brakes, differentials, frame and major body panels (hood, tailgate and quarter panels) are identical between the HMMWV and the Hummer H1. All Hummer H1s and HMMWVs come off the same first stage assembly line, and then are separated midway to either become a military HMMWV or a civilian H1.

Hummer H1s are unique in the way they handle off road. They are inherently very stable, thanks to their wide stance. They also can ford 30 inches (76 cm) of water, climb a 22-inch (56 cm) step, have a stock ground clearance of 16 inches (41 cm) (thanks to its design of tucking driveline components inside a channel, which subsequently intrudes into the cabin space of the vehicle), have approach/departure angles of 72/37.5 degrees and most H1s are equipped with Central Tire Inflation System (CTIS), which enables the driver to increase or decrease the tire air pressure at will.

Hummer H1s have many unusual features. They use inboard brakes. They have geared hubs, allowing the drivetrain's half shafts to be up high for greater clearance. The radiator is up high, sloping back over the engine. Rather than using simple runflat tires, aluminum or rubber inserts are an optional feature for runflat ability. A central tire inflation system is available as an option. Chemical warfare resistant paint is available only on the military version.

Hummer H1 Alpha Concept, 2001

Hummer H1 Alpha Concept, 2001

 



The Hummer H1 is a civilian vehicle based on the High Mobility Multipurpose Wheeled Vehicle (HMMWV), popularly known as the Humvee, which was created by AM General.

History
Originally released in the civilian market in 1992, the Hummer H1 owes its birth to the popularity of photos from Operation Desert Storm and the enthusiastic campaign from actor Arnold Schwarzenegger, who personally owns several variants of Hummer vehicles. GM announced that 2006 would be the last model year for the Hummer H1 with production winding down in June 2006, due to a new emission laws for Diesel engine vehicles which take effect in 2007. No version of the Hummer H1 ever produced would meet these new standards. AM General currently has orders for an excess of 50,000 new HMMWVs to be produced between 2006-2009 for the United States Military. AM General also will continue to produce the H1, just not the Alpha. These vehicles will be sold through Fleet sales. The next H1 will most-likely bear a refined version of the prior 6.5L Turbo Diesel engine, but that has not been confirmed. Selling the H1's through fleet sales will allow the AM General to not be subjected to the new emission rules and regulations. AM General has sufficient fleet orders to produce 600-800 units per year right now.

Specifications
The Hummer H1 has three common variants: a convertible-like soft top, a four-door hard top pickup truck and a Wagon body version. Other less known variants include a two-door pickup truck and a four-door slantback. At this time, the convertible/soft top and the station wagon versions are the only ones available in the mass market. The two door and four door pickup versions are only available in fleet livery.

5 engine types and three automatic transmission types can be found in Hummer H1s. The common engine/transmission combinations are:
    * 6.2 L Detroit Diesel V8/GM TH400/3L80 3-speed
    * 6.5 L Detroit Diesel V8/GM 4L80-E 4-speed
    * 5.7 L Vortec 5700 gasoline V8 TBI/GM 4L80-E 4-speed
    * 6.5 L turbo Detroit Diesel V8/GM 4L80-E 4-speed
    * 6.6 L Duramax LLY turbo Diesel/Allison 1000 5-speed (model year 2006)

The Hummer H1 shares some common driveline parts with its HMMWV brethren. Items like brakes, differentials, frame and major body panels (hood, tailgate and quarter panels) are identical between the HMMWV and the Hummer H1. All Hummer H1s and HMMWVs come off the same first stage assembly line, and then are separated midway to either become a military HMMWV or a civilian H1.

Hummer H1s are unique in the way they handle off road. They are inherently very stable, thanks to their wide stance. They also can ford 30 inches (76 cm) of water, climb a 22-inch (56 cm) step, have a stock ground clearance of 16 inches (41 cm) (thanks to its design of tucking driveline components inside a channel, which subsequently intrudes into the cabin space of the vehicle), have approach/departure angles of 72/37.5 degrees and most H1s are equipped with Central Tire Inflation System (CTIS), which enables the driver to increase or decrease the tire air pressure at will.

Hummer H1s have many unusual features. They use inboard brakes. They have geared hubs, allowing the drivetrain's half shafts to be up high for greater clearance. The radiator is up high, sloping back over the engine. Rather than using simple runflat tires, aluminum or rubber inserts are an optional feature for runflat ability. A central tire inflation system is available as an option. Chemical warfare resistant paint is available only on the military version.
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