From Infiniti press: Since the Infiniti QX4 was first introduced as a 1997 model, it has been known as an incredibly well thought out, exceptionally comfortable luxury sport utility vehicle (LSUV). Its advanced design features have included the performance of its innovative All-Mode 4WD® system, its rigid MonoFrame® construction and an extensive list of luxury conveniences and amenities – with the added comfort of one of the industry’s leading customer service and support programs, The Total Ownership Experience®.
For 2003, QX4 receives key packaging enhancements, including the addition of previous Premium Package features as standard equipment. This includes 17-inch wheels and tires, a leather/genuine wood steering wheel, driver’s seat memory and steering wheel mounted audio control switches. One new exterior color is offered for the new model year.
QX4’s technologically advanced 3.5-liter DOHC V6 produces 240 horsepower at 6,000 rpm and 265 lb-ft of torque at 3,200 rpm. This engine is part of the same engine family that was named one of the ‘Ten Best Engines’ in the world nine consecutive years by Ward’s Auto World magazine.
Among the advanced systems found in this engine are continuous valve timing control, a variable intake system, a lightweight piston design, an aluminum-alloy block, electronic throttle control system, 100,000-mile service interval platinum-tipped spark plugs and extensive noise, vibration and harshness countermeasures. An engine cover provides a clean engine compartment appearance.
All 2003 QX4s are equipped with an electronically controlled 4-speed automatic transmission with overdrive. The transmission features Infiniti’s advanced integrated transmission controller for seamless shifting.
The QX4 is available in 2-wheel drive or 4-wheel drive, featuring Infiniti’s advanced All-Mode 4WD system. The All-Mode 4WD system provides a superior driving experience on and off the pavement, utilizing all-wheel drive technology derived from Nissan’s world-class Skyline GT-R sports coupe (rather than traditional truck-based systems). All-Mode 4WD was designed to instantly distribute torque to the front wheels (up to 50 percent can go to the front wheels on demand) resulting in optimal traction with improved fuel economy and enhanced cornering capability.