At September's Frankfurt Motor Show, BMW showed off a concept version of their new X6 crossover. The X6 is expected to launch in 2009 and will be built at BMW's Spartanburg, South Carolina assembly plant alongside the X5 and X3. Aside from the coupe-like roof-line of the X6, the other distinguishing feature of the vehicle was the first BMW application of the Two-Mode hybrid system. At the 2007 Detroit show, BMW featured diesel engines prominently and it had been expected that the first U.S. applications would be in the the X5 and 5-series. A promotional video featuring the production X6 has now surfaced and, as the camera scans details of the new vehicle, it lingers prominently on the X-Drive 35d badge. Like the X5, the X6 will almost certainly be sold with the diesel overseas, The question is will US buyers get a chance to sample the X6 35d? How about the first diesel-Two-Mode-hybrid application? We can only hope. The video is after the jump.