Not really a fair comparison due to the different weather (rain vs dry), but... I geocache and there was one cache that I thought I had to try.
http://www.geocaching.com/seek/cache_det...&log=y&decrypt=

Some of the logs are intersting to read.

http://www.geocaching.com/seek/log.aspx?LUID=78f0c7d0-86fc-4aa3-b4d4-00617df64081

and

http://www.geocaching.com/seek/log.aspx?LUID=24dae22f-a61f-45af-a462-3d34200e80d8

and

http://www.geocaching.com/seek/log.aspx?LUID=4f2aacad-48b6-4e9a-baa2-636f529ae92d

and finally!

http://www.geocaching.com/seek/log.aspx?LUID=84e83e0a-733c-469c-8ce5-e2d94ea984fb

The short story is this. Three Jeeps (two Rubicons) tried making it up and failed, my stock 05 OR X made it up with very little trouble.