Audi already has a hardcore version of the R8, called the R8 GT, but this obviously tweaked R8 was spied outside an Audi facility in Germany. From the license plate, it seems to be Audi's high performance testing facility in Heilbronn. This would be in keeping with the bigger fixed rear wing and front splitter. It is unlikely that this will end up as an R8 RS, as Audi's normal nomenclature doesn't apply to the R8, and we will more likely see a revival of the Sport badge. Photos courtesy of SB-Medien via WCF.