Back in 2010 at the Beijing Motor Show, Mercedes-Benz showed off the concept version of their latest CLS four-door coupe. Thing was, that concept was not a "four-door coupe;" but a shooting brake design. This immediately sparked a lot of speculation as to whether the German automaker was actually going to adapt this body style at some point in the future. And that time is apparently now as these latest spy shots prove to us. What you see here is quite clearly a test mule for the upcoming CLS Shooting Brake.

Out doing winter testing in northern Sweden, this lightly disguised prototype will soon be arriving in dealerships. Power will likely come from both the 4.6-liter twin-turbo V8 as well as the 5.5-liter twin-turbo V8. The latter engine means that an AMG version will be happening. We don't have an exact arrival date just yet, but it seems Mercedes isn't about to allow Cadillac to have all of the fun with their CTS and CTS-V Wagon.