As a PCA regular, I can tell you three things:

- The classes are set up according to power/weight ratio, and then if some car is out-classing or out-classed they will consider moving it after soliciting member input. They are very democratic in this sense.
- It works. All classes are extremely competitive. Agreed, there are some very slow cars that make the range of lap times in any given class look pretty wide, but remember that there are many who only race 1-2 times per year, and on a limited budget.
- The 13/13 rule, as implemented by PCA, sucks!

Timo