Mercedes-Benz appears to be benchmarking the next ML-Class against the best of the competition in its segment.
(http://imgs.blackfalconmedia.com/2010/12/8/medium/19619871482077946589.jpg)
2012 Mercedes Benz ML spied testing against Cayenne, X5 (http://feeds.worldcarfans.com/~r/worldcarfans/Jxfz/~3/CKQijEMxMy4/2012-mercedes-benz-ml-spied-testing-against-cayenne-x5)