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Mercedes-Benz unveils its revamped G-Class

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The all-new G-Class makes its public debut at the Detroit auto show in G550 form. Completely redeveloped and fitted with a 4.0-liter V8 biturbo gasoline engine offering 427ps and 450 lb-ft of torque at 2,000rpm to 4,750rpm, despite near-identical looks to its predecessor plenty has changed for the Mercedes-Benz SUV.


Ford’s F150 pickup gets its first diesel motor

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Developed by the powertrain team behind the 6.7-liter Power Stroke engine for super duty trucks, the all-new 3.0-liter V6 Power Stroke unit promises 250ps, 440 lb-ft of torque, and an anticipated 5175kg of towing capacity.


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In light of Fisker's solid-state battery breakthrough and claims of a one minute charge time, will this electric vehicle technology development kick-start mass BEV uptake? 

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VW Polo to hit market with cylinder deactivation

The Polo BlueGT, which was unveiled at this year’s Geneva Motor Show, represents the first production VW application to use ACT cylinder deactivation technology.

The turbocharged 1.4-liter four-cylinder produces 140PS, yet VW says it returns a combined cycle fuel consumption figure of around 60mpg and emits a forecasted 108g/km of CO2 thanks to its innovative cylinder on demand technology that see’s the four-pot operate as a two-cylinder during appropriate driving conditions.

At the heart of the Polo BlueGT is the first of the new EA211 series of engines, which will become commonplace in the new modular transverse matrix that will underpin future Volkswagen models.

Under light and medium loads, the second and third cylinders are automatically shut down, producing fuel savings of up to 0.4 liters per 100km in the EU driving cycle. At a constant 30mph, the savings can be as much as one liter per 100km, and even at 44mph in fifth gear, around 0.7 liters per 100 km can be saved. Cylinder deactivation occurs at engine speeds of between 1,250 and 4,000rpm, and at torque outputs of 25 to 100Nm. If the driver presses the accelerator pedal, the two cylinders are imperceptibly reactivated. All mechanical switchovers occur within 13 to 36 milliseconds, depending on engine speed. The multifunction display in the instrument binnacle lets the driver know when cylinders are deactivated.

8 March 2012


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