New for 2018 is the BMW M550i xDrive. BMW is nothing if not thorough in its nomenclature.

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A 4.4-liter V8 engine puts out 456 horsepower and 480 pound-feet of torque.

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Power goes to all four wheels through an eight-speed automatic transmission.

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The all-wheel drive system keeps the torque biased towards the rear.

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A rear deck spoiler compliments the rear fascia of the M550i.

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BMW claims the M550i can go from 0-60 mph in four seconds. Yowza!

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There are some M Performance design accents on the front air intakes in a grey metallic finish paint, which is carried over to the mirror caps and grille frame.

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The interior of the 2018 M550i is pretty much what you'll find on the current five series.

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Door plates. In case you forget what you're driving.

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I swear there are two turbochargers under there.

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No word on pricing yet, but the 2018 BMW M550i xDrive should be at dealers in spring 2017. Scroll through for more photos of this German sport sedan.

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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BMW M550i xDrive

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