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BMW's new turbo four nestled in the X1 crossover SUV
New engine to offer more power and torque than the naturally aspirated inline-6

It's hard to not to mention the name BMW and not think about the company's buttery smooth inline-6 engines. With the exception of the current generation M3, 3-Series models in the U.S. for over a decade have been powered solely by inline-6 engines. And most recently, BMW has added turbos to its inline-6 to boost power and efficiency.

BMW is now looking to make another leap in fuel efficiency, and it means that the company's normally aspirated inline-6 could get the axe in favor of a new 2.0-liter, turbocharged inline-4 engine. The new engine produces 240hp @ 5,000 rpm and 260 lb-ft of torque at just 1,250 rpm.

For comparison, the 3.0-liter inline-6 produces 230hp at 6,500 rpm and a meager 200 lb-ft of torque at 2,750 rpm when used in the 328i.

The new engine uses the same technology found in the turbocharged version of the inline-6 (N55) meaning that a twin-scroll turbocharger, direct injection, and VALVETRONIC intake control are onboard. In addition, the new turbo four is not only lighter than the naturally aspirated inline-6, but it is also more compact.

BMW has not released official fuel economy numbers for the new engine yet, but it will no doubt offer better ratings than the current naturally aspirated inline-6.

Expect all of BMW's models that use the naturally aspirated 3.0-liter inline-6 (1-Series, 3-Series, X3, X1, Z4, etc.) to switch over to the engine shortly.





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