BMW has treated its high-performance X6 M to a refresh for the 2013 model year, rolling the controversial bad boy out during the New York Auto Show for its first official appearance. Unfortunately, the changes are so subtle that we required an official BMW tour guide to point them out.

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In lieu of such a service for each of our readers, the next paragraph will have to suffice.
Most obvious is the new ‘power bulge’ hood, borrowed from the now-defunct BMW X6 Active Hybrid. Less visible are the cosmetic changes to the BMW-signature kidney grill and the new optional LED headlights (active HID bulbs remain standard).
Full story: Autoblog