A test mule of the 2017 Audi TT RS has been spotted performing hard testing on the Nürburgring. At a first glance this might look like a normal black TTS Coupe, but in reality hiding underneath the familiar skin is actually the range-topping RS version set to come out in the second half of next year as a 2017MY. If you look closely, it sits lower and has a different exhaust system that we normally see only on test mules while the soundtrack clearly comes from Audi's well-known 5-cylinder, 2.5-liter turbocharged gasoline engine.
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