As goes the X5, so goes the X6. A couple of weeks ago we saw a preview video of the X5 M edition, and now BMW has release a similarly styled video with a thinly veiled X6 M. The video noted that the car will have a V8 engine with two turbochargers, which just backs up our suspicions of the 500+ hp 4.4-liter twin turbo powerplant making an appearance in this car/truck.

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