Well autocrossing is technically known as Solo II. Solo II is operated by the Sports Car Club of America a.k.a. SCCA. The SCCA establish regions (southwest, southeast etc) and within these regions chapters are formed. For example in Louisiana we have RRR, Delta and Cenla regions. You race within your local chapter. Solo II is basically the cheapest form of competitive racing that one can get into. The SCCA arranges all cars by make and model into classes A-Stock, B-Stock, C-Stock.... Cars are basically arranged into classes by Power, weight, and drivetrain. There are also classes for modified cars such as prepared, street prepared, and modified. Each class has rules on the extent to which the car can be modified. For example I race in DSP, D-Stock Street Prepared because I have aftermarket springs and shocks. Each class has a PAX which is equivalent to a handicap. So basically a bunch of people show up to a large preferably smooth parking lot with all kinds of cars modified to all kinds of levels and race on a set course that is marked by cones. The purpose of PAX is to set some kind of equalizer between all the cars. So if somebody shows up in a super modified Evo and runs like a 40.xxx on a certain course he won't necessarily win the event because somebody driving a stock mini cooper might run a 48.xxx but will win because of PAX. PAX is a multiplier so the guy with the EVO will have his time multiplied by .879 while the guy in the stock Mini will have his time multiplied by .785. So essentially you can win an autocross event with pure driving skill. Basically this allows people to race on a budget and show up with stock cars. Fortunately, you can show up with a stock Mini Cooper S and run Hoosier and win the whole event because of PAX. So essentially the event is all about driver skill not who has the biggest numbers. The event are so cheap because they are self-run and governed. You get at least four timed runs on a course. You run usually in two heats. You drive two runs and work the other heat. Then you run again while the other groups works the course. Events are $25 and occurs usually once to twice a month. Fortunately, there are all levels of Solo II, from the intrested spectator to the sponsored national competitor. All in all it allows for a lot of fun on a very small budget!!!
Hopefully that clears everything up and hopefully it is not too long and confusing
