Savor ever moving moment in the 2013 QX56 by Infiniti, with the interior Tri-Zone entertainment center, The engine of the QX was designed to be both more powerful and more efficient. The 5.6-liter Direct Injection Gasoline (DIG) V8 features dual overhead cams, 32 valves and sophisticated VVEL valve control that enhances throttle response as well as economy. 400 horsepower and 413 lb-ft of torque deliver an impressive 8500lb towing capacity[*] and the ability to pass with confidence. Acceleration is specially honed to the senses, increasing with a smooth, rising swell. The capability of the QX is matched with sensory reward.