Re Tigers off-pavement: Take a look at these trip reports.
Jefe4x4's Sierra XTC, which included my Tiger on the first part of the trip:
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/27277376.cfmMy own trip report from the Eastern Sierra, especially first and last segments:
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/27270054.cfmThe TC folks were surprised at how well the Tiger did. Most problems I had were caused by my inexperience, not by the Tiger. I had never driven any road as tough as the one into Coyote Flats. Getting over some of those patches with the big rocks and ruts required a spotter to guide me through.