Mercedes Benz has unvieled their first two mode hybrid SUV called the “ML 450 Hybrid” at the Frankfurt Motor Show. Mercedes plans production in 2009 and is calling this vehicle “the world’s most economical SUV petrol hybrid in it’s class”. The ML 450 is equipped with a 3.5L V6 engine coupled with two electric motors for a combined output of 321 hp. Power for the electric motors is supplied by a 288V battery and can be charged using regenerative braking or the gasoline engine.

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What will amaze you is how quietly the 3.0-liter Common rail Direct Injection (CDI) V6 engine operates and carries the 5,236 pound body of the GL 320 CDI. The turbocharged v-6 generates a respectable torque of 398 lb-ft at 1,600 rpm and yet delivers a combined fuel mileage of 24 mpg. There are no tell tale signs of sulphur exhaust from the diesel due in part to the oxidizing catalytic converter close to the engine as well as the particulate filter.

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Mercedes showcased its BLUETEC E320 at the New York International Auto Show in April of 2006. Mercedes labels BLUETEC as the “cleanest diesel technology in the world” and claims that it can meet the most stringent emissions standards.

Essentially, BLUETEC is Diamler Chryslers name for its Nitrogen Oxide reducing system for use in its vehicles. The E320 BLUETEC incorporates a system called the DeNox in its exhaust stream which is basically a catalytic converter and a particulate filter in addition to other reducing technologies.
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