Pretty much anything that says Brabus on it means, "You guys made this thing way too girlie. We are going to rip it apart, inject it with steroids, and then declare this a real machine."
Not only have they chosen my favortie SUV as their specimen, but they have slapped a 6.3 litre Twin Turbo V12. Thats pretty much like putting two S4 motors into a power wheels and hitting the strip. So sweet, details here via Jalopnik.