unless you have a subaru or rally car, you probably don't want to take your daily driver or autox car....a lowered car would probably get eaten alive by some of the ruts that develop. The ground is pretty soft, so after a bunch of cars tear around the course things start to get pretty bad...ask jesse how many tires they popped off the impreza

I'm looking for a co-drive if anybody has a vehicle to share...

It is pretty damn fun though, bring your car out if it can take it.