Old thread but had a chance to get reaquainted with the X6M over the long weekend (up here) and had a good time. Never felt like the X6M didn't have any grunt left- it was always me who lifted the right foot off. A lot of fun driving on the highways as people tried to keep up or block me, and the only car which kept up was a Panamera. Only downside to this car is it's just so damn big and wide making it a total pain to park in small Malaysian parking spaces and also quite difficult to overtake through the narrow lanes.
There was also a huge downpour but it was no issue for all wheel drive. How I miss four wheel drive.