The Hummer HX is a two-door off-road concept compact SUV that was revealed at the 2008 North American International Auto Show by General Motors.

Manufacturer	General Motors
Class	Concept car
Body style	2-door SUV
Layout	Front engine, four-wheel drive
Engine	3.6L V6
Transmission	6-speed automatic
Wheelbase	2,616 mm (103.0 in)
Length	4,343 mm (171.0 in)
Width	2,057 mm (81.0 in)
Height	1,829 mm (72.0 in)

Design

The objective of the HX was to position the Hummer brand into a smaller and cheaper market segment. Development of the vehicle, dubbed H4, began in 2004 and the new model was to be Jeep Wrangler sized.
The 2008 HX show car was smaller than both the H2 and H3. It was powered by a 3.6 L (220 cu in) V6 engine mated to a six-speed automatic transmission. The HX shared with other Hummers a body-on-frame design, with front and rear independent suspensions, four-wheel-disc brakes, and full-time four-wheel drive.
The HX was shown with a slant-back configuration, wearing a desert-inspired matte olive paint scheme, and featured removable doors with exposed hinge pins and removable composite fender flares that are attached with quarter-turn quick-release fasteners.
The exterior's matte olive color was also applied to the interior's largely sheet metal-covered panels. The floor was a rubberized material. The HX seats four, with a pair of bucket-type seats in the second row. The removable rear seats allow cargo room. The console included a compartment for phones and MP3 players with no conventional radio, only integrated speakers and a connector for digital players or similar devices.
Three designers who were new to General Motors, Robert Jablonski, Kang Min-young, a South Korea native, and David Rojas, a native of Peru, participated in the development of the Hummer HX.

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Last updated on 26 August 2013 at 02:10.

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The Hummer H3 is a SUV/Sport Utility Vehicle from General Motors' Hummer division produced from 2005 to 2010. It is based on the GMT355 underpinning the Chevrolet Colorado and GMC Canyon compact pickup trucks. Produced at GM's Shreveport, Louisiana factory and the Port Elizabeth plant in South Africa, the H3 is the smallest among the Hummer models, and the first to be built by GM. It was available either as a traditional midsize SUV or as a midsize pickup known as the H3T.

Manufacturer	General Motors
Production	2005 – 2010
Assembly	Port Elizabeth, Eastern Cape, South Africa Shreveport, Louisiana, United States Kaliningrad, Kaliningrad Oblast, Russia
Class	Mid-size SUV Pickup truck (H3T)
Body style	4-door
Layout	Front engine, four-wheel drive
Platform	GM GMT345 platform
Engine	3.5 L (211 CID) L52 I5 3.7 L (223 CID) LLR I5 5.3 L (327 CID) LH8 V8
Transmission	Hydra-Matic 4L60-E 4-speed automatic 5-speed manual
Wheelbase	2,842 mm (111.9 in)
Length	4,778 mm (188.1 in) with rear tire carrier
Width	1,897 mm (74.7 in)
Height	2006-07: 1,872 mm (73.7 in) 2008-2010: 1,859 mm (73.2 in)
Curb weight	2,100 – 2,200 kg (4,700 – 4,900 lbs)
Related	Chevrolet Colorado GMC Canyon Isuzu i-Series

Powertrains

The H3 was launched with a 3.5 liter straight-5 cylinder L52 engine that produced 220 hp (160 kW) and 305 Nm (225 lbft) of torque and was mated to a standard five-speed manual transmission or an optional Hydra-Matic 4L60-E four-speed automatic transmission. In 2007 this engine was replaced by 3.7 liter LLR that produced 242 hp (180 kW) and 328 Nm (242 lbft) of torque, figures that were revised in 2009 to 239 hp (178 kW) and 327 Nm (241 lbft ). Under revised EPA testing standards when equipped with either transmission this straight-5 engine achieved 14 mpg-US (17 l/100 km) in the city and 18 mpg-US (13 l/100 km) on the highway with a combined average of 15 mpg-US(16 l/100 km). Available solely with the automatic transmission, a 5.3 liter LH8 V8 engine producing 300 hp (220 kW) and 320 lbf·ft (430 N·m) of torque was added in 2008 for the Alpha model and delivered slightly lower fuel economy, estimated at 13 mpg-US (18 l/100 km) in the city, 16 mpg-US (15 l/100 km) on the highway, with a combined average of 14 mpg-US (17 l/100 km).

Capabilities

Hummer H3 showing external spare tire

The H3 featured a two-speed, electronically controlled full-time four-wheel drive system that made it suitable for both on-road and off-road driving. Electronic locking front and rear differentials were optional. Like the Hummer H2, the H3 can ford 24 inches (610 mm) of water (tested in depths up to 31 in or 790 mm) at a speed of 5 miles per hour (8.0 km/h) and 16 inches (410 mm) of water at a speed of 20 miles per hour (32 km/h). Standard ground clearance is measured at 9.7 inches (250 mm) while the approach, departure, and breakover angles are measured at 37.4°, 34.7°, and 22.1° respectively, allowing the H3 to scale a 16-inch (410 mm) vertical wall and negotiate grades of 60% and side slopes of 40%. Front and rear recovery hooks were standard, with an optional trailer hitch and wiring harness.
Maximum towing capacities were 3,000 pounds (1,400 kg) for the straight-5 with manual transmission, 4,500 pounds (2,000 kg) for the straight-5 with automatic transmission, and 6,000 pounds (2,700 kg) for the V8 with automatic transmission. Cargo volume with the second-row seats in the upright position was 25.0 cubic feet (0.71 m³) that could be expanded to a maximum of 62.8 cubic feet (1.78 m³) when the seats are folded down. V8 models featured the lightest maximum payload capacity of just over 1,100 pounds (500 kg) while straight-5, manual transmission models allowed the greatest payload at 1,300 pounds (590 kg).

Safety

Electronic stability control, anti-lock four-wheel disc brakes, brake-controlled traction control, LATCH child-seat anchors, and tire-pressure monitoring were standard features on the H3. Side-curtain airbags were optional until 2008 when they were made standard across. The H3 was rated Acceptable, the second highest rating, by the Insurance Institute for Highway Safety in both frontal offset and side-impact crashes (with side airbags) and Poor, the lowest rating, for rear-crash protection/head restraints.
The U.S. National Highway Traffic Safety Administration (NHTSA) gave the 2008 H3 the following scores:

Frontal Driver: 5/5

Frontal Passenger: 4/5

Side Driver: 5/5

Side Rear Passenger: 5/5

AWD Rollover : 3/5

H3T

2009 Hummer H3T Alpha

The Hummer H3T is a mid-size pickup truck that was available during the 2009 and 2010 model years.
The vehicle was originally shown as a regular cab (two-door) concept pickup truck in 2003, that was shown at the 2004 Los Angeles Auto Show. The production five-passenger four-door crew-cab production version appeared at the 2008 Chicago Auto Show. The H3T featured a 5-foot bed with built-in storage boxes and came in standard H3T, H3T Adventure, H3T Luxury, and H3T Alpha (with cloth or leather trim) trim packages.
A road test by Motor Trend reported the 2009 truck "crawled up rock steps, ran through sand washes, and navigated steep ledges with confidence and capability to spare." They described its turning radius "uncomfortably wide" and said "at highway cruising it would've been nice to have a faster, firmer feel.

Yearly U.S. sales

Calendar year	H3	H3T	Total
2005	33,140	0	33,140
2006	54,052	0	54,052
2007	43,431	0	43,431
2008	20,681	692	21,373
2009	5,487	2,046	7,523

International markets

In 2007, GM South Africa launched their first Hummer production facility in Port Elizabeth. The plant manufactured the Hummer H3 for the South African market, as well as units exported to Asia and Europe. This factory also manufactured a right hand drive version for the Australian market between 2007 and 2009. In Australia, the Hummer was distributed by GM Holden by specialist dealerships that were also affiliated with the Saab brand.
The H3 was qualified in 2010 by the Japanese Transport Ministry for tax breaks that set easier fuel-efficiency standards for heavier vehicles. The 4,700-pound (2,132 kg) H3's 16 mpg_-US(15 L/100 km; 19 mpg_-imp) average in city traffic cleared the required Japanese emissions standards relative to its weight. A total of 723 Hummers were sold in Japan during the 12 months before March 2009.

Motorsports

Robby Gordon competed in the 2010 Dakar Rally in a purpose built, tube frame chassis H3, finishing eighth overall.

Plug-in hybrid

In early 2009, Raser Technologies and FEV built a prototype plug-in hybrid H3 that could achieve up to 100 MPG given enough main power. This vehicle, known later as the Electric Hummer H3, was later showcased by California State Governor Arnold Schwarzenegger at a press conference at the State Capitol in Sacramento as part of a campaign to promote greener vehicles.

End of the H3

At the end of February 2010, General Motors announced it would begin dismantling the Hummer brand. After filling a rental-car fleet order, the last Hummer H3T rolled off line at Shreveport on May 24, 2010.

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Last updated on 25 August 2013 at 15:57.

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The Hummer H2 is an SUV and SUT that was marketed by General Motors under the Hummer brand. It is a large truck (slimmer than the Hummer H1), while longer, lighter, and taller with room for six passengers (including driver), seven passengers in some models. The rearmost part of the H2 SUV was modified to a pickup truck bed for the 2005 H2 SUT ("Sport Utility Truck"). The Hummer H2 was the only one of the trucks to have the letters HUMMER between the grille. The H2 SUT is considered a pick-up truck for its abilities to haul cargo with an extendable box to reach 6 feet in length. This makes the SUT able to haul the same cargo most trucks can haul.

Manufacturer	Am General and General Motors
Production	USA: 2003 – 2009
Assembly	Mishawaka, Indiana, United States Kaliningrad, Russia (Avtotor) Port Elizabeth, South Africa
Class	Full-size SUV
Body style	4-door crew cab truck 4-door SUV
Layout	Front engine Four-wheel drive
Platform	GMT913 (SUT)
Engine	6.0L 325 hp (242 kW) V8 (2003–07) 6.2L 393 hp (293 kW) V8 (2008–09)
Transmission	4L65E 4-speed (2003–2007) 6L80E 6-speed (2008–2009) automatic
Wheelbase	SUT: 3,119 mm (122.8 in) SUV: 3,119 mm (122.8 in)
Length	SUT: 5,169 mm (203.5 in) SUV: 5,169 mm (203.5 in)
Width	2,065 mm (81.3 in)
Height	2,007 mm (81.3 in) 2003-05: 1,976 mm (77.8 in)
Curb weight	6.2L 3,000 kg (6,614 lbs) 6.0L 2,900 kg (6,400 lbs)
Related	Hummer H1 Hummer H3 Hummer H3T

Overview

Hummer H2 "sport utility truck".

The H2 was built under contract by AM General at a specially constructed plant in Mishawaka, Indiana, USA. The H2's final frame assembly is made up of 3 sections: The front uses a modified GM 2500-Series utility frame, the midsection is all new and is completely boxed, and the rear section uses a modified GM 1500-Series frame which is upgraded for the 8,600 pounds (3,900 kg) gross vehicle weight.
The H2 was nominated for the North American Truck of the Year award for 2003.
Hummer launched a special 2009 Black Chrome Limited Edition version of the truck.
Rod Hall racing have won their class several times in Hummer H3 and H2 in the Baja 1000.

A Hummer H2 limousine

Yellow Hummer H2

Engines

• 2003–2004 6000 6.0 L (366 in³) V8

- 316 hp @ 5200 rpm
- 0-60 times: 10.9 sec

• 2005–2007 6000 6.0 L (366 in³) V8

- 325 hp @ 5200 rpm
- 0-60 times: 10.7 sec

• 2008–2009 6200 6.2 L V8

- 393 hp @ 5700 rpm
- 0-60 times: 9.5 sec

Application

The H2 has a light duty truck frame and has a wider-than-average track firm that may 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 specialized vehicle class. It was marketed as both a general purpose vehicle and as an off-road vehicle. The objective of GM's mass marketing was to maximize sales, and the H2 is primarily used as a passenger vehicle on typical roads. Along with the Ford Excursion the H2 was also the base for a limousine conversion.

Fuel economy

General Motors is not required to provide official H2 fuel economy ratings due to the vehicle's GVWR.

Publisher	Observation
Motortrend	10 mpg-US (24 L/100 km; 12 mpg-imp) / 4.3 km/l
Car and Driver	9 mpg-US (26 L/100 km; 11 mpg-imp) / 3.8 km/l
about.com	9 mpg-US (26 L/100 km; 11 mpg-imp) / 3.8 km/l
Edmunds	11.2 mpg-US (21.0 L/100 km; 13.5 mpg-imp) / 4.8 km/l
Four Wheeler	10.8 mpg-US (21.8 L/100 km; 13.0 mpg-imp) / 4.6 km/l

Tax benefits in the United States

Under the United States income tax code, the cost of vehicles over 6,000 pounds (2,700 kg) can be deducted from specific forms of 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 commercial 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 2006, the deduction was again reduced to US$25,000 for vehicles with GVWR between 6,000 lb (2,700 kg) and 14,000 lb (6,400 kg).
Base price MSRP in 2008 for the H2 was $53,286.

2006 Hummer lineup: H3, H1, and H2 (L-R)

Features

Standard features

Standard features include air conditioning w/tri-zone climate controls, tilt leather-wrapped steering wheel w/radio controls, cruise control, leather upholstery, heated front and rear seats, 8-way power front seats, dual memory system, BOSE premium sound system, 6-disc CD changer, outside-temperature indicator, compass, rear radio controls, independent front and rear suspension specially created for the H2, oversized tires with HUMMER rims, universal garage door opener and remote engine start (2008–2009).

Optional features

Options for the H2 include adjustable rear suspension, a wide power sunroof, rear view camera, DVD entertainment system, navigation system, ladder, custom grilles, side step bars, 20" Chrome HUMMER rims (slightly different from stock rims).

Yearly American sales

Calendar Year	Total American sales
2002	18,861
2003	34,529
2004	28,898
2005	33,140
2006	17,472
2007	12,431
2008	6,095
2009	600

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Last updated on 26 August 2013 at 13:12.

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