Isn't this comparing apples and oranges? I maybe wrong but isn't the GC almost double the price of the A7? Granted it shows in design in and out as well as the engineering philosophy. I if the price difference is correct I fail to see the point of this thread.
As for the MB...they have been in BMW's rear view mirrors ever since they joined forces with Chrysler. Even Audi's are starting to overpass MB, FWD and all...lol.