The BMW X4 M40i Is Your 355 Horsepower Budget X6 M

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A 3.0-liter twin-turbo inline-six in a BMW M4 Coupe produces 431 horsepower, as it should in a proper M car. Since the new X4 M40i isn’t actually a proper M car, you only get 355 horses from its 3-liter twin-turbo inline-six. Will that do?