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Old 12-02-2009, 11:58 AM   #1 (permalink)
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LA 2009: BMW's Futuristic Turbo-Diesel Plug-in Hybrid Arrives in LA


Undoubtedly the focal point of BMW's display at the LA Auto Show, the Vision EfficientDynamics Concept embodies the German automaker's high efficiency philosophy and is being shown in LA for the first time since its word debut in Frankfurt.

The Vision ED Concept is also a true BMW, offering impressive fuel economy while not sacrificing performance. A mean-looking 2+2 sports car, this concept uses both a turbo-diesel three-cylinder engine, as well as two electric motors in a full plug-in hybrid layout. BMW says the goal of the project was to build a vehicle that has the performance of one of its M cars, while delivering fuel-economy that is superior to current small cars. This they most certainly achieved with a 0-62 mph time of 4.8 seconds and a claimed fuel economy figure of 62.6 mpg.

The diesel engine used is essentially half of that found in the current BMW 335d, displacing 1.5-liters. On its own the diesel makes 163hp and 214 ft-lbs of torque. The car also gets BMW's impressive six-speed dual-clutch transmission.

Two electric motors are paired to this engine, which is located in a mid-rear configuration. A 33hp motor sits between the engine and transmission while a second 80-hp motor delivers power to the front axle. The result it a total of 356hp and 590 ft-lbs of torque. Storing that energy is a lithium-polymer battery pack that runs down the center of the car for optimum weight distribution.

BMW says the Vision EfficientDynamics Concept can be plugging in a charged at a conventional outlet in just 2.5 hours and can travel up to 31 miles on pure electric power. A 6.6 gallon diesel tank will then allow an extended range of 400 miles.

To keep the weight of the vehicle to a minimum, BMW engineers build the chassis and suspension entirely out of aluminum, meaning the car weights just 3,076 lbs. Engineers also worked hand-in-hand with the designers to create the body of the concept, with a light weight polycarbonate body that boasts a aerodynamic drag coefficient of just 0.22 cd. BMW says part of the reason for the impressive aerodynamics is due to their ability to work on the front end of the car, made possible by moving the engine to the rear. New thermostatically controlled slats in front of the radiator can also close at speed to redirect air around the car when cooling isn't a top priority.

In addition, one of the vehicle's most progressive technologies is what BMW calls “Forward looking energy management.” BMW hopes that by using technology to foresee what is coming on the road ahead it can save energy by shutting down or powering up other systems. An example would be using the radar system built into the active cruise control to see when traffic is slowing down ahead, and then shut of the car's engine while activating the regenerative braking ahead of time.

While some have speculated that the Vision ED Concept will make its way into production as a future BMW exotic car, it's more likely that the vehicle was built to showcase new technologies that will eventually make their way into BMW products in the future. We only wish they'd build it.

More: LA 2009: BMW's Futuristic Turbo-Diesel Plug-in Hybrid Arrives in LA on AutoGuide.com

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Old 12-02-2009, 02:30 PM   #2 (permalink)
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no no no its just wrong-bmw what do you stand for these days?
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Old 12-02-2009, 03:27 PM   #3 (permalink)
OMFG another one!?
 
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I think the moment a car is an efficient turbo diesel, it renders the idea of a hybrid a moot point.
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Old 12-02-2009, 10:59 PM   #4 (permalink)
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