Audi Nanuk Quattro: a bold, 544-horsepower concept!

Audi yesterday unveiled the Nanuk Quattro concept at the 2013 Frankfurt Auto Show. Somewhat similar in design to the Giugiaro Parcour Concept introduced in Geneva earlier this year, it uses a 5.0L TDI V10 that produces 544 horsepower and 738 lb-ft of torque.