Disappointed 
2003 Nissan Xterra SUV SE S/C 4WD 4dr SUV (3.3L 6cyl S/C 4A)
Disappointed
 I have just over 99,000 miles on my Xterra, and I have already had to replace a cracked exhaust manifold and the supercharger.  Now I am being told that the head gasket is leaking.  I love the styling and capability of the Xterra, but I have been very disappointed by the reliability.  I don't know if the 3.3 liter engine was not properly designed for the stresses associated with the supercharger, but it has definitely not lived up to my expectations.