Rumormill: Mercedes-Benz CLS shooting brake in the works? — Autoblog. Here’s the Mercedes ConceptFASCINATION from last year but still worth a good look. Looking ready for production, this 2 door wagon or ‘Shooting Brake’ is a nice piece of Design. M-B usually does a great job with surface and graphics whereas the details and proportions can be a little controversial – example: GLK. The concept here may not be practical but with the addtion of rear doors – this concept would make a very sporty wagon much like the Cadillac CTS Wagon. Speaking of the CTS, it sure is about time for Cadillac to move on from the razor edge folded paper look. It looked a little simplistic from the beginning and now it just looks dated.