The QX56 comes as one fully loaded model. You need only choose between two-wheel drive and four-wheel drive. The 5.6-liter V8 is rated at a 315 horsepower and 390 pound-feet of torque, and the transmission is a five-speed automatic. The four-wheel-drive system includes a low range. Leather-trimmed upholstery and the navigation system are standard. Also standard: xenon high-intensity discharge headlights, a power liftgate, a park-assist system, and a rearview video camera. Standard wheels are 18-inch chromium aluminum alloy, with 20-inch wheels optional. The QX56 comes with a full-size spare tire.For 2006, The INFINITI QX56 gets more standard equipment including power folding outside mirrors, a 60/40 split third row seat, a sound system with MP3 capability, and a Bluetooth hands-free phone system.