I have 5000 miles on my 2011 QX56 and really like the car but as expected have a few warranty issues. The gas gauge/range indicator is not accurate. The moonroof leaks when driven through an automatic car wash. The dealer says that is expected but I cannot believe Infiniti would manufacture a vehicle designed to leak significant amounts of water. My 2005 Denali never leaked a drop in the same car wash. The rear tailgate open/close buttons do not activate the power up or down. Dealer says "we're going to have to call the Infiniti Tech line on that one". Has anyone had the terrible wind noise when driving highway speeds with the rear window down? Again, I like the car.