Infiniti joins Cadillac and Lincoln in the full-size, luxury sport/utility vehicle segment with the QX56. Following the formula proven by the domestic manufacturers, Infiniti has outfitted the mainstream Nissan Pathfinder Armada with premium accoutrements, ranging from Infiniti cues to upscale feature content. Standout elements include standard navigation system, 10-speaker Bose audio system, adjustable pedals, and Vehicle Dynamic Control with Active Brake Limited-Slip. Key options include DVD system with wireless headphones, laser-based Intelligent Cruise Control, and RearView Monitor system. The fourth Infiniti model to tout V-8 power, the QX56 shares the 5.6-liter/315-horsepower engine and five-speed automatic transmission with the Nissan trucks. Offered in rear-wheel-drive and all-wheel-drive configurations, the QX56 carries the distinction of being the first Infiniti model assembled in the U.S.