Super Gas
Run what you brung. Soon it was decided that to keep more people interested they should have some more rules. That broke down into classes and the people were even more attracted as maybe now they had a chance too.
To make a long story short! They kept breaking it down to keep more people interested and racing which makes most of happy. If your not happy, your not looking at something that you think you like.
As the classes got faster and quicker, they didn't want to fool with the slow cars and more classes were formed.
Now it a sport to see how you can stack up with others with the same ideas of what you want to do. You don't have to do it, but if you do? They have a place for you.