The 2004 Infiniti QX56 is an all-new, from frame rails to roof rack, full-size SUV that's as big and as luxurious as the Lincoln Navigator or Cadillac Escalade. It is by far the biggest vehicle Nissan's Infiniti luxury division has ever sold. The Infiniti QX56 has nothing in common with the much smaller Pathfinder-class Infiniti QX4, which is expected to be discontinued. The QX56 is the most powerful, quietest, most luxurious, most spacious, most completely featured and stylish vehicle in its class. It's also the most utilitarian, boasting the most cargo and towing capacity. Want more? How about also being the most competitively priced? And at least as fuel efficient? If all this sounds too good to be true, for once, it isn't.