These latest spy shots depict a test-mule for the upcoming A7 that has crashed in front of the Porsche test center at the Nurburgring.
While the vehicle is hidden under the sheet metal of the current A6 sedan we can gather a few minor details. Namely, we can see that it will feature a significantly wider track than the A6. Previous spy shots of a masked prototype also showed that it will have a generous wheelbase but relatively short overhangs.
Source: Motor Authority