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Old 05-04-2007, 01:00 PM
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Arrow Chrysler hybrid will be a gasoline saver


Chrysler hybrid will be a gasoline saver

Chrysler's famous Hemi V-8 engine, known more for power than fuel economy, will become more fuel efficient when the company rolls out a hybrid version early next year.

Chrysler Group said this week it will offer a hybrid Hemi in its Dodge Durango and Chrysler Aspen sport utility vehicles that will improve their fuel economy by nearly 40 per cent in the city and about 25 per cent on the highway.

Analysts have said the "two-mode" hybrid system, developed jointly with General Motors and BMW, could vault SUVs and trucks into the same fuel efficiency range of some larger sedans.

Current Aspens and Durangos get 13 miles per gallon in the city and 18 on the highway, but the hybrid versions should get an estimated 18.2 mpg (12.9 litres per 100 kilometres) in city driving and about 22.5 (10.45 L/100km) on freeways. Chrysler would give only the percentage increases and not actual numbers, saying mileage testing had not been completed.

Andreas Truckenbrodt, executive director of hybrid programs for Chrysler parent DaimlerChrysler AG, said the mileage could go higher as the company works on engine tuning and vehicle aerodynamics.

"You might do something here or there which might give you a little tweak here or there," he said.

The hybrid system uses a computer to link two electric motors with the V-8 engine that has the capability of operating with four or eight cylinders. The computer picks from thousands of combinations of running on one electric motor, two electric motors, a combination of electric motors and the gasoline engine, or shutting down some of the V-8's cylinders.

The computer can judge speed, towing load, terrain, temperature, humidity, wetness of the pavement and other factors to decide the most fuel efficient combination of technologies.

Truckenbrodt said the hybrid system will allow people to tow large loads and carry a lot of people or gear, yet still give them good fuel economy.

"We just know that this 5.7-litre Hemi is really a natural fit for this multi-displacement system," he said.

DaimlerChrysler plans to use it in Mercedes and more Chrysler vehicles, although Truckenbrodt would not say which ones.

GM plans to sell the hybrid system in its Chevrolet Tahoe and GMC Yukon SUVs in the fourth quarter of this year and the system will go into the Cadillac Escalade SUV and Chevrolet Silverado and GMC Sierra crew cab pickups sometime next year.

Chrysler would not say the price of the hybrid models, nor would it state the towing capacity other than to say it knows people want something comparable to the current 8,950 pounds.

Most associate the 335-horsepower Hemi engine with muscle -- and the new hybrid system may change that image -- but Chrysler will have a lot of marketing work to do, said Rebecca Lindland, an auto analyst at Global Insight, an economic research and consulting company.

"The death of the Hemi is greatly exaggerated," she said. "Consumers really need to continue to explore their options when it comes to powertrains and not just necessarily say 'that thing has a V-8 engine and I can't get good mileage out of it.'"

Her company's research, though, shows SUVs are politically incorrect and conflict with the desire of most hybrid buyers to make an environmentally friendly statement.

"What Dodge needs to do is very clearly mark this vehicle as a hybrid version. They want everybody to know how much they're saving the environment," she said.

The hybrid system is a key for the companies that developed it because Americans still aren't ready to give up larger vehicles for compact cars, she said.

Source: [url=http://www.hamiltonspectator.com/NASApp/cs/ContentServer?pagename=hamilton/Layout/Article_Type1&c=Article&cid=1178166058555&call_pag eid=1020420665036&col=1112101662835]Hamilton Spectator[/url]
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