I remember a kid and his dad that showed up to the tracks with an old Nervo 1900 in the back of a pickup truck and they kicked some butt every week.
The awesome part about this sport is you can have a Haulmark with a stacker trailer with all the polished diamond plate trimmings or you can roll in with a 12' trailer with tire racks made out of scrap wood and as long as you put in the time on the car your kid can be competitive.
It isn't what you haul your car in that matters!
Here is a link to an older, but still pretty good Novice Guide:
http://www.alqma.com/novicehandbook%5B1%5D.pdf