Hey guys, this may be of interest to some of you. Just saw this last night and checked it out. They have classes for UTV's, buggies - Joyners and the like plus home-builts too. I gotta get busy.
http://www.southeastsxs.com/
There is a link from there the the sanctioning body, utvrallyraid.com
I'd be interested to see if others are interested in doing this. I raced enduro races with my class 16 car and would love to do this as the races are 4 hours long and you are racing against the clock.