2013-Audi-RS6-4 back to article 2013 Audi RS6 By OCT Tuning Under the hood of the riveting Audi RS6 Avant, lies a twin-turbocharged, 4.0-liter, V-8 engine that produces 560 horsepower. Without doubt, this has been the most forceful sports wagon so far. Gerrman tuner O.CT Tuning was challenged to make the ... Read More
