The Infiniti QX56 is a full-size luxury SUV built by Nissan's Infiniti division. The naming convention originally adhered to the current trend of using a numeric designation derived from the engine's displacement, thus "QX56" since the car has a 5.6 liter engine. It comes in one trim level, with only key options such as: DVD entertainment system, 4WD/2WD, and a bench instead of captain chairs as the second row. Other features which came standard were a ten-speaker Bose system, DVD-based navigation system, leather trim for all seats, dual-climate control, 18-inch chrome alloy wheels, and an adaptive cruise control system. A Precrash system was a unique feature in the market as well. Remote keyless entry is an available option for most Infiniti QX56 models.