The Audi RS6 is a high-performance luxury sedan that combines power and style. It features a 4.0-liter V8 engine that produces 600 horsepower and 590 lb-ft of torque, allowing it to accelerate from 0-60 mph in just 3.7 seconds.
From Wikipedia
The Audi RS 6 is a high-performance variant of the Audi A6 range, produced by the high-performance subsidiary company Audi Sport GmbH, for its parent company Audi AG, a subsidiary of the Volkswagen Group, from 2002 onwards.