Few would call the 560-hp Audi RS7 underpowered. Yet Audi still felt it necessary to breathe more grunt into the RS7’s twin-turbocharged 4.0-liter V-8 engine. Dubbed the Audi RS7 Performance, the 605-hp model was introduced last year. Its extra power comes courtesy of a new turbocharger design, more efficient intercooler heat exchangers, a reprogrammed engine […]
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2017 Audi RS7 Performance: Lucky Number Seven
