words and photos: Viktor Hadjiev, Continental Audi of Naperville Editor’s Note: This story originally ran in the Fall 2017 issue of the Audi Club North America quattro quarterly print magazine. If you don’t receive quattro quarterly and wish to subscribe, join the Audi Club North America HERE. When the S5 Sportback was first launched at the Geneva Auto Show, the car was painted Nardo Grey, a well-known color amongst fans of Audi Sport’s RS and R cars, not to mention Audi exclu...