Friday, 14 December 2012

BMW aims for EV with status

BMW aims for EV with status

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We're not inclined to believe predictions of the impending Mayan apocalypse, but news that the legendary BIGFOOT monster truck is now an electric vehicle has us hedging our bets.

Powered by 36 Odyssey batteries, the monster truck has an electric motor that develops 350 hp (261 kW) and 850 lb-ft (1,151 Nm) of torque. While it's disappointing that BIGFOOT now sounds like a Power Wheels BIGFOOT, one onlooker said "I've been going to monster truck shows for years, and I've never actually heard the cars get crushed under the tires. This thing is just unreal!"

Besides having an electric powertrain, the #20 BIGFOOT is equipped with heavy-duty ZF planetary axles, a ProFab transfer case and 25-inch steel wheels with 66-inch tall Firestone tires. The model has also switched back to a Ford body after briefly using a Chevrolet body in 2010.

The latest concept version of BMW's i3 electric car —representing more than 90 per cent of how the production model will look in about a year — is a thing of beauty.

As in the original concept, a strong, light carbon-fibre "Life Cell" passenger compartment is bolted and glued to an aluminum chassis that contains the battery like IBM ThinkPad A31 battery, IBM ThinkPad 600 battery, IBM 02K7016 battery, IBM ThinkPad G40 battery, IBM 08K8026 battery, IBM ThinkPad T21 battery, IBM ThinkPad T20 battery, IBM ThinkPad X61 battery, IBM ThinkPad T61 battery, IBM ThinkPad X41 battery, Lenovo 45J7914 Battery, Lenovo FRU 42T4558 Battery pack and absorbs impact energy in a collision.

It's powered, through the rear wheels, by a BMW-designed electric motor with 170 hp and 184 lb.-ft. of torque. The lithium-ion battery pack, likely 20 to 22 kilowatt-hours and with liquid thermal management, provides a range up to 160 km. That number will depend heavily on drivers' aggressiveness and which of three modes — comfort, EcoPro or EcoPro+ (which limits throttle response and top speed) — they select.

An optional "range extender" gasoline engine will let the car travel an additional 160 or so kilometres before needing a plug or pump — that distance dictated by a tiny fuel tank designed to conserve space and emphasize that this is a city vehicle, not a long-distance hauler.

The clear doors of the first concept are gone; replaced by more flowing, sculpted panels in a wider, lower body. The original had a hatch and four passenger doors — installed "suicide style," with the rear doors opening toward the back. The new version is a three-door coupe. The production model will revert to five doors, but it's not yet clear whether the suicide design will return, BMW executives said in L.A.

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