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G-Power Typhoon X6 M - click above for hi-res image galleryWe all know what the biggest problem with the BMW X6 M is, right? Not nearly enough power. Sure, 555 hp from a 4.4-liter twin-turbo V8 is 5 hp more potent than a Porsche Cayenne Turbo, making the X6 M the most powerful production SUV on ...