Showing posts with label GM. Show all posts
Showing posts with label GM. Show all posts

Wednesday, October 20, 2010

We're Goin' Surfin': Rental Corvette Abandoned in Pacific Ocean [With Videos]


Some presumably drunk people out California way decided to have a little bit too much fun in their recently-rented Corvette and ended up parked in salt water halfway up the car's doors. Thankfully in this day and age everyone has some sort of video recording device within arm's reach, so we have some post-parking-surfing videos below.

The story goes something like this: between two and four people - who may or may not have been racing - decided to roll on down to the end of Law Street (seriously) and take the normally pavement-pounding Corvette out to play in the sand. Once actually on the beach, the driver proceeded to do a few donuts, calmly drive the car into the water, and flee the scene.

The report indicates that some people who were involved have been detained, and that at least some of the expenses involved in pulling the car out of the sand could be recouped. All I can say for certain is that puling a car out of wet sand and water must have been hard as hell due to the suction; I learned that lesson when my friend took his Grand Marquis four-wheeling and the night ended...let's say poorly.

By Phil Alex

Source: CBS8


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Chevrolet Video Teases 2010 SEMA Show Tunes


Next up on our motor show calendar is the biggest tuning event of 2010, the SEMA gathering in Las Vegas, and like every year, GM will be there with a huge display of vehicles. This time, the General is video-teasing some of the Chevrolet models that will descend on the Las Vegas convention center next month including several Corvettes, Silverados and you guessed it, a boat-load of Camaro builds. Scroll down to watch the clip.



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Thursday, February 18, 2010

Geneva Preview: 2010 Opel Flextreme GTE Concept


Rüsselsheim. Opel will unveil its Flextreme GT/E concept car at the 80th Geneva Motor Show (March 4 – 14), that will boost the company’s credentials as a leader in green technologies, offering expressive design with efficient environmental performance – and engineered with German precision.

In Opel’s strategy for achieving more independence from fossil fuels, electricity plays a key role. The 4.7-meter long Flextreme GT/E concept illustrates how extended-range electric vehicle (E-REV) technology can be plugged into large or mid-size vehicles, as well as compact cars such as the upcoming Ampera.

Opel calls this strategy e-mobility unlimited: adapting the highly efficient E-REV drive system – which removes the limitations of battery-only power – to vehicles across all market segments. To enjoy zero CO2 driving emissions Opel-style, the Flextreme GT/E concept shows that size doesn’t matter.

The purposeful design also enables the Flextreme GT/E to achieve a projected drag co-efficient of just 0.22, which helps it reach a 200 km/h-plus top speed as well as conserve energy and extend its driving range. Stand-out visual features include a low and wide stance, wing-shaped lights front and rear, a distinctive nose and grille, floating C-pillars and muscular, sculptured bodywork.

“The Flextreme GT/E concept shows the shape of things to come from Opel,” says Frank Weber, Vice President, Corporate and Product Planning. “Bold, expressive and highly efficient, it represents the product strategy we will apply to all our future vehicles, large and small, across all market segments.”


Exterior design: expressing efficiency with emotion

The low, coupé-like proportions of the Flextreme GT/E explore the potential for evolving Opel’s new design language – sculptural artistry meets German precision – within an envelope optimized for aerodynamic efficiency.

The clean, frontal styling features a low hood line and an extended nose section, which is clasped by wing-shaped, signature LED headlamps. These are deeply carved into the front fenders and across the hood line. The new trapezoidal grille execution is slim but bold. The prominent wing-shaped chrome bar carries a large Opel emblem, which doubles as a socket for charging the Flextreme GT/E’s battery pack.

The upper section of the grille is used to admit cooling air, the lower portion being covered by a translucent panel. The absence of additional air intakes allows a low frontal area for aerodynamic efficiency and also enables the Flextreme GT/E to meet future pedestrian protection requirements.

The sculpted hood, with an Opel signature central crease line, features narrow longitudinal vents on either side to draw air out of the engine compartment. The muscular fenders and wheel-arches sweep back into the side-body.

In profile, the Flextreme GT/E is distinguished by innovative, stubbed C-pillars. This floating design allows the glasshouse to be extended rearwards under the arching roofline, emphasizing the flowing lines of the side body. The car’s dynamic character is further underlined by a fresh expression of Opel’s signature blade motif, now a swooping swage line from the base of the C-pillar into the lower front fender.

Access to the cabin is enhanced by the adoption of rear-hinged rear doors, an evolution of the Opel FlexDoors concept from the new generation Meriva monocab. To preserve the clean exterior looks, all door handles are replaced by light sensors. These trigger the doors open when covered by the driver’s or passenger’s hand. To reduce air turbulence, exterior front door mirrors are also absent, replaced by small camera pods in the base of the A-pillars.

At the rear, a strong shoulder line embraces sculpted wheel-arches that further emphasize the Flextreme GT/E’s wide, ground-hugging stance. The coupé look is completed by a steeply raked tailgate, carrying wing-shaped LED light units which echo the form of the front headlamps. Like that of the Insignia Sports Tourer, the tailgate has a wraparound design for improved trunk access. Its deep glass screen is slightly convex to improve airflow.

The translucency of the fixed glass panel in the center of the roof is adaptive, allowing sunlight to warm the interior in the cold of winter, but darkening for coolness in summer. A duct at the rear edge of the roof is for additional cooling of the battery and electronic components.


Managing airflow and saving weight

Integral to the Flextreme GT/E’s expressive looks is the efficiency of the design execution. The small frontal area, low roof height (1308 mm) and a flat, enclosed underbody all enable the car to cleave the air with a minimum of disturbance.

A series of measures optimize airflow management. The 21-inch alloy wheels are relatively narrow, to reduce wind resistance, and fitted with 195/45, low rolling resistance tires. Clear, flush-mounted trim inserts also minimize air turbulence.

The minimal front intake improves airflow around the nose of the car and the underbody sweeps up, venturi-like, at the rear to further reduce drag.

The Flextreme GT/E also explores the potential for active shape shifting. At speeds above 50 km/h, a vertical panel extends along the body from the air extraction slot behind each rear wheel-arch. These 350 mm-long side spoilers guide high-speed airflow around the rear corners of the car, further reducing the amount of turbulence.

Mass reduction measures for the body include the use of lightweight, carbon composite outer panels, polycarbonate window glazing and aluminum alloy structural components. Compared to conventional materials, these offer a 40 percent weight saving which further contributes to reduced energy consumption and an increased driving range.


Innovative propulsion

The efficient concept also includes GM’s ground-breaking E-REV drive system, already developed for the Opel Ampera. The Flextreme GT/E shows the versatility of this technology by displaying it in a larger, mid-size vehicle format.

Despite its greater size and a maximum speed of more than 200 kilometers per hour, the Flextreme GT/E is projected to offer performance similar to that of the Ampera: a battery-powered driving range of up to 60 km – with zero CO2 tailpipe emissions – and a total range of more than 500 km. Average fuel consumption is estimated at 1.6 l/100 km, with CO2 emissions of less than 40 g/km.

Unlike a hybrid vehicle, the wheels of the Flextreme GT/E are powered at all times by electricity. For typical journeys up to 60 km, energy is supplied by a T-shaped lithium-ion battery pack located under the floor and rear seat.

However, unlike a battery-only electric vehicle, the Flextreme GT/E eliminates any possibility of range anxiety through fear of being stranded without power. The small gasoline engine/generator is seamlessly engaged to provide electricity whenever the battery’s supply becomes depleted. In this mode, the driving range is extended to more than 500 km, until the plug-in battery pack can be recharged or the car is refueled.

The motor in the electric drive unit delivers a substantial 370 Nm of instant torque, giving lively performance and projected zero to 100 km/h acceleration in less than nine seconds.

The Flextreme GT/E concept is a further step in Opel’s unfolding strategy for the electrification of the automobile, which includes a wide portfolio of products using battery, extended-range, hybrid and fuel cell technologies.


Opel Flextreme GT/E Concept: Technical Data

Body style
Type 5-door coupé, 4-seat upper mid-size concept vehicle
Co-efficient of drag 0.22
Exterior dimensions
Overall length (mm) 4762
Height (mm) 1308
Width (mm) 1871
Wheelbase (mm) 2900
Front track (mm) 1600
Rear track (mm) 1600
Wheels/Tires
Wheel size 21 inch
Tires 195/45 R 21; extra low-rolling resistance
Powertrain
Type Electric drive, front-wheel-drive
Battery system:
Type Advanced lithium-ion (manganese spinel)
Energy 16 kWh
Nominal voltage 350 volts
On-board charger 3.3 kW
100% recharge time (230V outlet) <>
Electric drive unit:
Max. power 120 kW
Torque 370 Nm
Generator:
Power 53 kW peak output
Engine type 4-cyl. 1.4l gasoline-fueled combustion engine
Performance
Pure electric mode range 60 km
Full range, range extender engaged > 500 km
CO2 emissions, combined cycle (est.) <>
0 – 100 km/h acceleration <>
Maximum speed > 200 km/h

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Thursday, February 4, 2010

Nissan Frontier tops latest round of IIHS crash tests, Chevrolet Colorado hits bottom


First time Institute rates small pickups for rollover protection; only one model rates good in test that assures strength of roof

The Nissan Frontier has the strongest roof and the Chevrolet Colorado the weakest among 5 small pickup trucks, all 2010 models, that recently were tested for rollover protection by the Insurance Institute for Highway Safety. The Frontier, also sold as the Suzuki Equator, is the only pickup in the group to earn the highest rating of good. The Ford Ranger is rated acceptable while the Dodge Dakota, Toyota Tacoma, and Colorado (also sold as the GMC Canyon) earn the second lowest rating of marginal.


The rating system is based on Institute research showing that occupants in rollover crashes benefit from stronger roofs. Vehicles rated good must have roofs that are more than twice as strong as the minimum required under the current federal safety standard. The ratings, products of the Institute's new roof strength testing program, add to consumer information tests that rate vehicles' front, side, and rear crashworthiness. The rollover test is designed to help consumers pick vehicles that will protect them the best in one of the most serious kinds of crashes.

"As a group, small pickups aren't performing as well as small cars or small SUVs in all of the Institute's safety tests. None of the ones we tested is a top-notch performer across the board. In fact, no small pickup earns our Top Safety Pick award," says Institute senior vice president David Zuby. The Frontier came close to winning the 2010 award, but it's rated acceptable instead of good for protection against neck injury in rear crashes. To earn Top Safety Pick, a vehicle has to earn good ratings for protection in front, side, rear, and rollover crashes. It also has to have electronic stability control.


Nearly 10,000 people a year are killed in rollovers. When vehicles roll, their roofs hit the ground, deform, and crush. Stronger roofs crush less, reducing the risk of injury from contact with the roof itself. Stronger roofs also can prevent people, especially those who aren't using safety belts, from being ejected through windows, windshields, or doors that have broken or opened because the roof deformed. Roofs that don't collapse help keep people inside vehicles when they roll.

Rollovers are much more common for SUVs and pickup trucks than for cars. In 2008 almost half (47 percent) of all pickup occupants killed in crashes were in trucks that rolled over. This compares with 58 percent of deaths in SUVs and 25 percent in cars.

The best occupant protection is to keep vehicles from rolling in the first place. Electronic stability control is significantly reducing rollovers, especially fatal single-vehicle ones. When vehicles roll, side curtain airbags help protect people. Safety belt use is essential.


Roof strength-to-weight ratio within 5 inches of crush

In the Institute's roof strength test, a metal plate is pushed against 1 corner of a roof at a constant speed. To earn a good rating, a roof must withstand a force of 4 times the vehicle's weight before reaching 5 inches of crush. For an acceptable rating, the minimum strength-to-weight ratio required is 3.25. A marginal rating value is 2.5, and anything lower than that is poor. The Frontier withstood a force of just over 4 times its weight. This compares with 2.9 times weight for the Colorado. A strength-to-weight ratio of 4 reflects an estimated 50 percent reduction in serious or fatal injury risk in single-vehicle rollover crashes, compared with the current federal standard of 1.5.

In April 2009, the National Highway Traffic Safety Administration ended numerous delays by unveiling a new rule that raises the federal roof strength requirement, currently a strength-to-weight ratio of 1.5, to 3 for vehicles with weight ratings up to 6,000 pounds. Roofs on vehicles with weight ratings 6,000 to 10,000 pounds will be required to withstand a force equal to 1.5 times their unloaded weight, whereas these vehicles' roofs are not regulated under the old standard. Another requirement is that roofs maintain sufficient headroom during testing. For the first time, the government will require the same performance on both sides of a roof when tested sequentially. Phase-in begins in September 2012, and all vehicles must comply by September 2016.


"The long phase-in of the new standard means roofs won't have to get stronger right away," Zuby points out, "so we plan to continue rating vehicle roof strength for the foreseeable future. We want to reward manufacturers who are ahead of their competition for protecting people in rollovers."

In addition to the new roof strength ratings, the Institute conducted side tests of small pickup truck models. Earning good ratings are the Frontier, with standard front and rear head curtain airbags plus front torso airbags. Also earning good ratings are the Ranger, with standard front-seat mounted combination head and torso airbags, and the Tacoma, which the Institute tested in 2008.

In contrast, the Colorado is rated poor for occupant protection in side crashes. It's equipped with standard curtain side airbags but lacks additional airbags designed to protect a driver's torso. The Colorado's poor structure, along with poor protection for the driver dummy's chest and pelvis, contributed to its poor rating overall. Plus the dummy's head came close to moving around the curtain airbag during the impact by the intruding barrier.

"A slightly different crash configuration could have resulted in a direct hit from the barrier on the dummy's head," Zuby explains.


The test of the Dakota produced a different problem. Its optional curtain side airbags failed to deploy. This is the first time this has happened in an Institute side test. Chrysler engineers say they've identified a problem with the computer program algorithm that calculates when to fire the airbags and are working on a remedy. When the computer program is fixed, the Institute will conduct another test of the Dakota and publish the results.

Zuby notes that "the Dakota is the only 2010 small pickup the Institute tested that has optional rather than standard side airbags. Most of the auto industry pledged to get standard side airbags in every new passenger vehicle by now."

Chrysler was among 15 manufacturers who got together in 2003 and agreed on the first set of rules designed to reduce the risks for people in front and side crashes involving larger and heavier SUVs and pickup trucks. Although the compatibility agreement specified performance criteria and not features, the idea was to make safety improvements like installing side airbags in all passenger vehicles more quickly than would have been the case with a government regulation.

"Chrysler is the only manufacturer we know of that isn't living up to the spirit of the 2003 agreement," Zuby says.

Side evaluations are based on performance in a crash test in which the side of a vehicle is struck by a barrier moving at 31 mph. The barrier represents the front end of another pickup or SUV. Ratings reflect injury measures recorded on 2 instrumented SID-IIs dummies representing 5th percentile women, assessment of head protection countermeasures, and the vehicle's structural performance during the impact.
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