I don't think it's that whoopy anymore. Cal's Honda Civic made it out there unscathed. They seem to be grading it somewhat often. A few years ago it was whoopy enough to get my poor overloaded '90 to repeatedly bottom out at relatively slow speeds. But since then, they've been grading it and laying gravel, and have built a bridge over the truly frightening feature. After a nice relatively flat area where you could get some nice speed going, there was a sudden 35+ degree downslope into a 8-10' deep drainage wash area and an almost immediate climb back out of it. When hurrying out Boone Road after dark to get out to the lakebed, it could come as quite an unpleasant surprise. But it now has a bridge crossing it, so even that isn't an issue.
I think you'll be just fine!!