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Mercedes Announces New V6 and Twin-Turbo V8 With Added Power, Better Fuel Economy

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Mercedes has just announced details of its new V6 and V8 engines with added power and a massive improvement in fuel economy. Most exciting is a new 4.7-liter twin-turbo V8 with 435-hp and 516 ft-lbs of torque. This engine is set to replace the current 5.5-liter naturally aspirated V8, adding 12 percent more power and 35 percent more torque. The new V8, featuring direct-injection technology, will also boast a 22 percent improvement in fuel economy.

The twin 4.7-liter powerplant will first appear in the CL-Class and S-Class.

Next up is a much needed replacement for the anemic and not-so fuel efficient 3.5-liter V6 engine. Also measuring in at 3.5-liters, the new engine may have the same displacement but is an all new motor with a 60 degree V versus the 90 degree angle on the old engine. It also gets direct-injection to bump power to 306-hp and 273 ft-lbs of torque – which is still shy of the sort of torque BMW is making in the 335i and short of the power Infiniti is getting in its 3.7-liter V6. Mercedes claims than in the S350 (not offered in the U.S.) fuel economy improvements will be as much as 24 percent.

More: Mercedes Announces New V6 and Twin-Turbo V8 With Added Power, Huge Fuel Economy Improvements on AutoGuide.com
 
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