We've known for quite some time now that BMW->ke178 has been preparing a new-generation X6, but this is the first time a prototype was caught testing, as BMW decided to take the next X6 ->ke2396 to the Nurbrugring racetrack to see how well the sporty SUV handles.

Few details are known about the next X6 up to this point, but we do know it will drop about 330 pounds, and BMW will focus on making the SUV more fuel efficient. The engine lineup will undergo a few changes, and it will include a new four-cylinder engine for the entry-level model, and a 400-horsepower, straight-six engine for the top version. Rumors suggest we could also see a hybrid powertrain.

The new BMW X6 will be unveiled sometime in 2014 and will be put on sale in early 2015.

Click past the jump to read more about the next BMW X6.

Spy shots

The prototype caught testing today wears lots of camouflage, but this doesn't stop us from speculating on what the next X6 will look like. It's pretty clear that it will adopt a more coupe-like silhouette, and that will adopt some changes up front and on the rear.

The model will take design cues from the X5, with new headlights connected to the grille and the daytime running lights positioned underneath them.