American performance is usually served with unmistakable flamboyance. For example, both the shark-nosed Corvette Z06 and Terminator-esque Shelby GT350 Mustang offer unambiguous speed cues front to back. But that’s a good thing; it’s an essential facet of their character. However, some people prefer the straight-to-jail speed in a package that flies comfortably under the radar. Folks looking for a combination like that usually turn to Europe, birthplace of cars like the Audi RS7 Sportback Performance. To the uninitiated, it’s just another AWD luxury sedan. But to those who know, it’s over 600 horsepower and a top speed of 190 mph.