If crack could somehow not be a life ruining substance... it would be like a track day.
At any "track day" you are pretty much required to keep a certain distance from other cars. Passing is only allowed in the straights with both parties acknowledging the pass. Organizers also group cars into similar speeds. So you don't have to worry about a Ferrari running your ass down and tailgating you through a corner.
I have seen a few guys wad up their cars at a track day... but they were driving WAY beyond their limits trying to show off.
Wheel to wheel racing is a completely different deal... everybody trailers their wheel to wheel cars to an event. Cars do wreck at these. But nobody is driving to work in them either... so it's not a problem. Much more fun, but you had better be selling organs/drugs on the side for the kind of money it requires.
If you aren't a complete retard, have a helmet (a cheap DOT rated helmet can be found for $50) and a car that's mechanically sound you can run at any track day.
<-- NASA tech inspector. Used to be an SCCA tech inspector but I let my cred's. expire.
http://www.nasarockymountain.com/http://www.coloradoscca.org/To learn more.
Also:
The state patrol rents out their proving grounds on weekends. We do a few Subaru only track days every year. Typically 20-25 cars show up. Cost is between $50-$80 per person. More people = less money... but less driving time. Nothing is timed. It's a blast. If there is enough interest in doing a Mazda only track day over the summer I can start making arrangements.