When the Audi Sportback Concept sauntered into the Detroit spotlights last year, the four-ring brand told us that the "concept" was very close to what would become the production A7, a car we hear will debut late this summer at the Moscow Motor Show in August. A few months short of its rumored date with destiny, though, we've caught it working out at the Nurburgring.With its big debut rapidly approaching, it's no surprise we found this prototype wearing only body paint over what appears to be a production-ready body. As close to production as the Sportback Concept was rumored to be, there are certainly changes evident on this car. Gone are the all-LED headlights, replaced with more conventional bi-xenon units. So too are the large brake ducts in the lower fascia missing, replaced with more utilitarian fog lights. Though Audi's done a commendable job hiding it, from what we can see the big grille is mostly unchanged from the concept.The rear end of the car has been likewise tamed. Gone are the integrated, asymmetrical exhaust tips in favor of some conventional round tips poking out the bottom of the fascia. Gone as well are the angular elements in the tail lights, replaced with circular ones that look a bit less daring. We also notice a deeper cut for the hatchback, with the lid now apparently incorporating the license plate area and making for a larger and lower opening for what we assume will be easier loading and unloading of cargo. Of most interest, though, is an integrated pop-up spoiler that appears to deploy at speed to clean up airflow over the rear of the car.